More work on wallet page

1 files changed, 129 insertions, 2494 deletions

diff --git a/public/js/wallet.js b/public/js/wallet.js
index ded6bf06..4a7778dd 100644
--- a/public/js/wallet.js
+++ b/public/js/wallet.js
@@ -1,15 +1,13 @@
 ;(function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0](function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i})({1:[function(require,module,exports){
 (function(){(function() {
-  var buffer, check_address, convertedAmount, createWallet, displayErrors, g, getBalance, getExchangeRate, getToken, getUser, isBip32, multiplier, precision, sendTransaction,
+  var check_address, convertedAmount, createWallet, displayErrors, g, getBalance, getExchangeRate, getToken, getUser, isBip32, multiplier, precision, sendTransaction,
     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
-  buffer = require('buffer');
-
   g = typeof exports !== "undefined" && exports !== null ? exports : this;
 
   g.proceed = false;
 
-  g.api = 'https://api.blockcypher.com/v1/btc/main';
+  g.api = 'https://api.blockcypher.com/v1/bcy/test';
 
   $(function() {
     getToken();
@@ -18,18 +16,31 @@
     });
     $('#keys form input[type=button]').click(function() {
       $('.form-control').blur();
-      if ($('.has-error').length > 0) {
-        $('.has-error').effect('shake', 500);
+      if ($('#keys .has-error').length > 0) {
+        $('#keys .has-error').effect('shake', 500);
+        return;
       }
-      $.ajax({
-        url: "" + g.api + "/wallets/hd/" + g.user.username + "?token=" + g.token,
-        type: 'DELETE'
-      });
-      $.post("/" + g.user.username, $('#settings form').serializeObject(), function() {
-        $('#keys .alert-success').fadeIn().delay(2000).fadeOut();
-        return setTimeout(function() {
-          return $('#withdraw').click();
-        }, 2000);
+      $('#withdraw').click();
+      $('#keys_updated').fadeIn();
+      $.post("/" + g.user.username, $('#keys form').serializeObject(), function() {
+        return $.ajax({
+          url: "" + g.api + "/wallets/hd/" + g.user.username + "?token=" + g.token,
+          type: 'DELETE'
+        }).done(function() {
+          return setTimeout(function() {
+            var data;
+            data = {
+              name: g.user.username,
+              extended_public_key: $('#pubkey').val(),
+              subchain_indexes: [0, 1]
+            };
+            return $.post("" + g.api + "/wallets/hd?token=" + g.token, JSON.stringify(data)).always(function() {
+              return $.post("" + g.api + "/wallets/hd/" + g.user.username + "/addresses/derive?token=" + g.token).always(function() {
+                return getBalance();
+              });
+            });
+          }, 300);
+        });
       });
       return false;
     });
@@ -73,15 +84,34 @@
       }
     });
     $('#password').keyup(function() {
+      g.master = null;
       try {
-        return g.privkey = CryptoJS.AES.decrypt(g.user.privkey, $(this).val()).toString(CryptoJS.enc.Utf8);
-      } catch (_error) {}
+        g.master = bitcoin.HDNode.fromBase58(CryptoJS.AES.decrypt($('#privkey').val(), $(this).val()).toString(CryptoJS.enc.Utf8));
+        $(this).parent().removeClass('has-error').addClass('has-success');
+        return $('#invalid_keys').fadeOut();
+      } catch (_error) {
+        return $(this).parent().addClass('has-error').removeClass('has-success');
+      }
+    });
+    $('#new_password').keyup(function() {
+      $('#privkey').val(CryptoJS.AES.encrypt(g.privkey, $(this).val()));
+      try {
+        bitcoin.HDNode.fromBase58(CryptoJS.AES.decrypt(g.user.privkey, $(this).val()).toString(CryptoJS.enc.Utf8));
+        return $(this).parent().removeClass('has-error').addClass('has-success');
+      } catch (_error) {
+        return $(this).parent().addClass('has-error').removeClass('has-success');
+      }
+    });
+    $('#manage').click(function() {
+      $('#keys, #withdrawal').toggle();
+      $('#withdraw, #manage').toggle();
+      return $('#privkey').val(g.user.privkey);
     });
-    $('#manage, #withdraw').click(function() {
+    $('#withdraw').click(function() {
       $('#keys, #withdrawal').toggle();
       return $('#withdraw, #manage').toggle();
     });
-    return $('#backup').click(function() {
+    $('#backup').click(function() {
       var pom, url;
       url = 'data:application/json;base64,' + btoa(JSON.stringify(g.user.privkey));
       pom = document.createElement('a');
@@ -89,6 +119,19 @@
       pom.setAttribute('download', 'coinos-wallet.aes.json');
       return pom.click();
     });
+    $('#generate').click(function() {
+      var key, mnemonic;
+      mnemonic = bip39.generateMnemonic();
+      key = bitcoin.HDNode.fromSeedBuffer(bip39.mnemonicToSeed(mnemonic)).deriveHardened(44).deriveHardened(0);
+      g.privkey = key.toString();
+      $('#pubkey').val(key.neutered().toString()).effect('highlight', {}, 2000);
+      $('#privkey').val('');
+      $('#new_password').parent().show();
+      return $('#new_password').effect('shake', 500).focus();
+    });
+    return $('[data-hide]').on('click', function() {
+      return $(this).closest('.alert').fadeOut();
+    });
   });
 
   getToken = function() {
@@ -143,69 +186,58 @@
     return $.get("" + g.api + "/addrs/" + g.user.username + "/balance?token=" + g.token + "&omitWalletAddresses=true", function(data) {
       var balance, fiat;
       balance = data.final_balance;
-      g.balance = (balance * multiplier() / 100000000).toFixed(precision());
-      fiat = (g.balance * g.exchange / multiplier()).toFixed(2);
+      g.balance = balance.toBTC();
+      fiat = balance.toFiat();
       $('#balance').html(g.balance);
-      $('.wallet').fadeIn();
       $('#fiat').html("" + fiat + " " + g.user.currency);
       $('#amount').attr('max', g.balance);
-      $('#amount').val(0.00001);
-      $('#recipient').val('13zP2yHXd6pMM9cATwRtQcTx7CgZsi6saE');
-      return $('#amount').focus();
+      $('#amount').val(g.balance);
+      $('#recipient').val('CAdJXbDTotrZt4DjC7oj9npQUZgKKMF5e3');
+      $('#amount').focus();
+      return $('.wallet').fadeIn();
     });
   };
 
   sendTransaction = function() {
-    var params;
-    params = {
-      inputs: [
-        {
-          wallet_name: g.user.username,
-          wallet_token: g.token
-        }
-      ],
-      outputs: [
-        {
-          addresses: [$('#recipient').val()],
-          value: 1
-        }
-      ],
-      preference: $('#priority').val()
-    };
-    return $.post("" + g.api + "/txs/new?token=" + g.token, JSON.stringify(params)).done(function(data) {
-      var amount, dialog, e, master, value, _i, _len, _ref;
-      if (data.errors) {
-        dialog.getModalBody().html('');
-        _ref = data.errors;
-        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-          e = _ref[_i];
-          dialog.getModalBody().append("<div class='alert alert-danger'>" + e + "</div>");
-        }
-      }
-      try {
-        master = bitcoin.HDNode.fromBase58(g.privkey);
-      } catch (_error) {}
-      if (!master || typeof master.keyPair.d === 'undefined') {
-        $('#withdrawal .alert-danger').fadeIn().delay(3000).fadeOut();
-        return $('#password').focus();
-      } else {
-        dialog = new BootstrapDialog({
-          title: '<h3>Confirm Transaction</h3>',
-          message: '<i class="fa fa-spinner fa-spin"></i> Calculating fee...</i>',
-          buttons: [
-            {
-              label: 'Send',
-              cssClass: 'btn-primary'
-            }, {
-              label: ' Cancel',
-              cssClass: 'btn-default',
-              action: function(dialogItself) {
-                return dialogItself.close();
-              },
-              icon: 'glyphicon glyphicon-ban-circle'
-            }
-          ]
-        }).open();
+    var dialog, params;
+    if (!g.master || typeof g.master.keyPair.d === 'undefined') {
+      $('#invalid_keys').fadeIn();
+      return $('#password').focus();
+    } else {
+      dialog = new BootstrapDialog({
+        title: '<h3>Confirm Transaction</h3>',
+        message: '<i class="fa fa-spinner fa-spin"></i> Calculating fee...</i>',
+        buttons: [
+          {
+            label: 'Send',
+            cssClass: 'btn-primary'
+          }, {
+            label: ' Cancel',
+            cssClass: 'btn-default',
+            action: function(dialogItself) {
+              return dialogItself.close();
+            },
+            icon: 'glyphicon glyphicon-ban-circle'
+          }
+        ]
+      }).open();
+      params = {
+        inputs: [
+          {
+            wallet_name: g.user.username,
+            wallet_token: g.token
+          }
+        ],
+        outputs: [
+          {
+            addresses: [$('#recipient').val()],
+            value: 1
+          }
+        ],
+        preference: $('#priority').val()
+      };
+      return $.post("" + g.api + "/txs/new?token=" + g.token, JSON.stringify(params)).done(function(data) {
+        var amount, value;
         if ($('#currency_toggle').html() === g.user.unit) {
           amount = $('#amount').val();
         } else {
@@ -218,43 +250,49 @@
           params.outputs[0].value -= params.fees;
         }
         return $.post("" + g.api + "/txs/new?token=" + g.token, JSON.stringify(params)).done(function(data) {
-          var change, fee, total;
+          var fee, total;
           data.pubkeys = [];
           data.signatures = data.tosign.map(function(tosign, i) {
             var key, path;
             path = data.tx.inputs[i].hd_path.split('/');
-            key = master.derive(path[1]).derive(path[2]);
-            data.pubkeys.push(key.getPublicKeyBuffer().toString('hex'));
-            return key.sign(new buffer.Buffer(tosign, "hex")).toDER().toString("hex");
+            key = g.master.derive(path[1]).derive(path[2]);
+            data.pubkeys.push(key.keyPair.getPublicKeyBuffer().toString('hex'));
+            return key.keyPair.sign(new buffer.Buffer(tosign, "hex")).toDER().toString("hex");
           });
+          g.data = data;
           amount = data.tx.outputs[0].value;
           fee = data.tx.fees;
           total = amount;
           if (value > parseFloat(g.balance).toSatoshis() - data.tx.fees) {
             total += fee;
           }
-          if (data.tx.outputs.length === 2) {
-            $('#change').show();
-            change = data.tx.outputs[1].value;
-            $('.dialog .change').html("" + (change.toBTC()) + " " + g.user.unit + " (" + (change.toFiat()) + " " + g.user.currency + ")");
-          }
           $('.dialog .amount').html("" + (amount.toBTC()) + " " + g.user.unit + " (" + (amount.toFiat()) + " " + g.user.currency + ")");
           $('.dialog .fee').html("" + (fee.toBTC()) + " " + g.user.unit + " (" + (fee.toFiat()) + " " + g.user.currency + ")");
           $('.dialog .total').html("" + (total.toBTC()) + " " + g.user.unit + " (" + (total.toFiat()) + " " + g.user.currency + ")");
           $('.dialog .address').html(data.tx.outputs[0].addresses[0]);
           dialog.getModalBody().html($('.dialog').html());
           return dialog.getModal().find('.btn-primary').click(function() {
-            return $.post("" + g.api + "/txs/send?token=" + g.token, JSON.stringify(data)).then(function(finaltx) {
-              return $('#withdrawal .alert-success').fadeIn().delay(2000).fadeOut();
+            return $.post("" + g.api + "/txs/send?token=" + g.token, JSON.stringify(g.data)).then(function(finaltx) {
+              var balance, fiat;
+              $('#transaction_sent').fadeIn();
+              balance = g.balance.toSatoshis() - finaltx.tx.outputs[0].value - finaltx.tx.fees;
+              g.balance = balance.toBTC();
+              fiat = balance.toFiat();
+              $('#balance').html(g.balance);
+              $('#fiat').html("" + fiat + " " + g.user.currency);
+              $('#blockchain').off('click').on('click', function() {
+                return window.open('https://live.blockcypher.com/bcy/tx/' + finaltx.tx.hash, '_blank');
+              });
+              return dialog.close();
             });
           });
         }).fail(function(data) {
           return displayErrors(data.responseJSON, dialog);
         });
-      }
-    }).fail(function(data) {
-      return displayErrors(data.responseJSON, dialog);
-    });
+      }).fail(function(data) {
+        return displayErrors(data.responseJSON, dialog);
+      });
+    }
   };
 
   displayErrors = function(data, dialog) {
@@ -322,7 +360,7 @@
   };
 
   Number.prototype.toBTC = function() {
-    return (this / 100000000 * multiplier()).toFixed(precision());
+    return parseFloat((this / 100000000 * multiplier()).toFixed(precision()));
   };
 
   Number.prototype.toFiat = function() {
@@ -337,2408 +375,5 @@
 
 
 })()
-},{"buffer":2}],3:[function(require,module,exports){
-(function(){// UTILITY
-var util = require('util');
-var Buffer = require("buffer").Buffer;
-var pSlice = Array.prototype.slice;
-
-function objectKeys(object) {
-  if (Object.keys) return Object.keys(object);
-  var result = [];
-  for (var name in object) {
-    if (Object.prototype.hasOwnProperty.call(object, name)) {
-      result.push(name);
-    }
-  }
-  return result;
-}
-
-// 1. The assert module provides functions that throw
-// AssertionError's when particular conditions are not met. The
-// assert module must conform to the following interface.
-
-var assert = module.exports = ok;
-
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-//                             actual: actual,
-//                             expected: expected })
-
-assert.AssertionError = function AssertionError(options) {
-  this.name = 'AssertionError';
-  this.message = options.message;
-  this.actual = options.actual;
-  this.expected = options.expected;
-  this.operator = options.operator;
-  var stackStartFunction = options.stackStartFunction || fail;
-
-  if (Error.captureStackTrace) {
-    Error.captureStackTrace(this, stackStartFunction);
-  }
-};
-util.inherits(assert.AssertionError, Error);
-
-function replacer(key, value) {
-  if (value === undefined) {
-    return '' + value;
-  }
-  if (typeof value === 'number' && (isNaN(value) || !isFinite(value))) {
-    return value.toString();
-  }
-  if (typeof value === 'function' || value instanceof RegExp) {
-    return value.toString();
-  }
-  return value;
-}
-
-function truncate(s, n) {
-  if (typeof s == 'string') {
-    return s.length < n ? s : s.slice(0, n);
-  } else {
-    return s;
-  }
-}
-
-assert.AssertionError.prototype.toString = function() {
-  if (this.message) {
-    return [this.name + ':', this.message].join(' ');
-  } else {
-    return [
-      this.name + ':',
-      truncate(JSON.stringify(this.actual, replacer), 128),
-      this.operator,
-      truncate(JSON.stringify(this.expected, replacer), 128)
-    ].join(' ');
-  }
-};
-
-// assert.AssertionError instanceof Error
-
-assert.AssertionError.__proto__ = Error.prototype;
-
-// At present only the three keys mentioned above are used and
-// understood by the spec. Implementations or sub modules can pass
-// other keys to the AssertionError's constructor - they will be
-// ignored.
-
-// 3. All of the following functions must throw an AssertionError
-// when a corresponding condition is not met, with a message that
-// may be undefined if not provided.  All assertion methods provide
-// both the actual and expected values to the assertion error for
-// display purposes.
-
-function fail(actual, expected, message, operator, stackStartFunction) {
-  throw new assert.AssertionError({
-    message: message,
-    actual: actual,
-    expected: expected,
-    operator: operator,
-    stackStartFunction: stackStartFunction
-  });
-}
-
-// EXTENSION! allows for well behaved errors defined elsewhere.
-assert.fail = fail;
-
-// 4. Pure assertion tests whether a value is truthy, as determined
-// by !!guard.
-// assert.ok(guard, message_opt);
-// This statement is equivalent to assert.equal(true, guard,
-// message_opt);. To test strictly for the value true, use
-// assert.strictEqual(true, guard, message_opt);.
-
-function ok(value, message) {
-  if (!!!value) fail(value, true, message, '==', assert.ok);
-}
-assert.ok = ok;
-
-// 5. The equality assertion tests shallow, coercive equality with
-// ==.
-// assert.equal(actual, expected, message_opt);
-
-assert.equal = function equal(actual, expected, message) {
-  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
-};
-
-// 6. The non-equality assertion tests for whether two objects are not equal
-// with != assert.notEqual(actual, expected, message_opt);
-
-assert.notEqual = function notEqual(actual, expected, message) {
-  if (actual == expected) {
-    fail(actual, expected, message, '!=', assert.notEqual);
-  }
-};
-
-// 7. The equivalence assertion tests a deep equality relation.
-// assert.deepEqual(actual, expected, message_opt);
-
-assert.deepEqual = function deepEqual(actual, expected, message) {
-  if (!_deepEqual(actual, expected)) {
-    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
-  }
-};
-
-function _deepEqual(actual, expected) {
-  // 7.1. All identical values are equivalent, as determined by ===.
-  if (actual === expected) {
-    return true;
-
-  } else if (Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
-    if (actual.length != expected.length) return false;
-
-    for (var i = 0; i < actual.length; i++) {
-      if (actual[i] !== expected[i]) return false;
-    }
-
-    return true;
-
-  // 7.2. If the expected value is a Date object, the actual value is
-  // equivalent if it is also a Date object that refers to the same time.
-  } else if (actual instanceof Date && expected instanceof Date) {
-    return actual.getTime() === expected.getTime();
-
-  // 7.3. Other pairs that do not both pass typeof value == 'object',
-  // equivalence is determined by ==.
-  } else if (typeof actual != 'object' && typeof expected != 'object') {
-    return actual == expected;
-
-  // 7.4. For all other Object pairs, including Array objects, equivalence is
-  // determined by having the same number of owned properties (as verified
-  // with Object.prototype.hasOwnProperty.call), the same set of keys
-  // (although not necessarily the same order), equivalent values for every
-  // corresponding key, and an identical 'prototype' property. Note: this
-  // accounts for both named and indexed properties on Arrays.
-  } else {
-    return objEquiv(actual, expected);
-  }
-}
-
-function isUndefinedOrNull(value) {
-  return value === null || value === undefined;
-}
-
-function isArguments(object) {
-  return Object.prototype.toString.call(object) == '[object Arguments]';
-}
-
-function objEquiv(a, b) {
-  if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
-    return false;
-  // an identical 'prototype' property.
-  if (a.prototype !== b.prototype) return false;
-  //~~~I've managed to break Object.keys through screwy arguments passing.
-  //   Converting to array solves the problem.
-  if (isArguments(a)) {
-    if (!isArguments(b)) {
-      return false;
-    }
-    a = pSlice.call(a);
-    b = pSlice.call(b);
-    return _deepEqual(a, b);
-  }
-  try {
-    var ka = objectKeys(a),
-        kb = objectKeys(b),
-        key, i;
-  } catch (e) {//happens when one is a string literal and the other isn't
-    return false;
-  }
-  // having the same number of owned properties (keys incorporates
-  // hasOwnProperty)
-  if (ka.length != kb.length)
-    return false;
-  //the same set of keys (although not necessarily the same order),
-  ka.sort();
-  kb.sort();
-  //~~~cheap key test
-  for (i = ka.length - 1; i >= 0; i--) {
-    if (ka[i] != kb[i])
-      return false;
-  }
-  //equivalent values for every corresponding key, and
-  //~~~possibly expensive deep test
-  for (i = ka.length - 1; i >= 0; i--) {
-    key = ka[i];
-    if (!_deepEqual(a[key], b[key])) return false;
-  }
-  return true;
-}
-
-// 8. The non-equivalence assertion tests for any deep inequality.
-// assert.notDeepEqual(actual, expected, message_opt);
-
-assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
-  if (_deepEqual(actual, expected)) {
-    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
-  }
-};
-
-// 9. The strict equality assertion tests strict equality, as determined by ===.
-// assert.strictEqual(actual, expected, message_opt);
-
-assert.strictEqual = function strictEqual(actual, expected, message) {
-  if (actual !== expected) {
-    fail(actual, expected, message, '===', assert.strictEqual);
-  }
-};
-
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);
-
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
-  if (actual === expected) {
-    fail(actual, expected, message, '!==', assert.notStrictEqual);
-  }
-};
-
-function expectedException(actual, expected) {
-  if (!actual || !expected) {
-    return false;
-  }
-
-  if (expected instanceof RegExp) {
-    return expected.test(actual);
-  } else if (actual instanceof expected) {
-    return true;
-  } else if (expected.call({}, actual) === true) {
-    return true;
-  }
-
-  return false;
-}
-
-function _throws(shouldThrow, block, expected, message) {
-  var actual;
-
-  if (typeof expected === 'string') {
-    message = expected;
-    expected = null;
-  }
-
-  try {
-    block();
-  } catch (e) {
-    actual = e;
-  }
-
-  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
-            (message ? ' ' + message : '.');
-
-  if (shouldThrow && !actual) {
-    fail('Missing expected exception' + message);
-  }
-
-  if (!shouldThrow && expectedException(actual, expected)) {
-    fail('Got unwanted exception' + message);
-  }
-
-  if ((shouldThrow && actual && expected &&
-      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
-    throw actual;
-  }
-}
-
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
-
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
-  _throws.apply(this, [true].concat(pSlice.call(arguments)));
-};
-
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
-  _throws.apply(this, [false].concat(pSlice.call(arguments)));
-};
-
-assert.ifError = function(err) { if (err) {throw err;}};
-
-})()
-},{"util":4,"buffer":2}],4:[function(require,module,exports){
-var events = require('events');
-
-exports.isArray = isArray;
-exports.isDate = function(obj){return Object.prototype.toString.call(obj) === '[object Date]'};
-exports.isRegExp = function(obj){return Object.prototype.toString.call(obj) === '[object RegExp]'};
-
-
-exports.print = function () {};
-exports.puts = function () {};
-exports.debug = function() {};
-
-exports.inspect = function(obj, showHidden, depth, colors) {
-  var seen = [];
-
-  var stylize = function(str, styleType) {
-    // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
-    var styles =
-        { 'bold' : [1, 22],
-          'italic' : [3, 23],
-          'underline' : [4, 24],
-          'inverse' : [7, 27],
-          'white' : [37, 39],
-          'grey' : [90, 39],
-          'black' : [30, 39],
-          'blue' : [34, 39],
-          'cyan' : [36, 39],
-          'green' : [32, 39],
-          'magenta' : [35, 39],
-          'red' : [31, 39],
-          'yellow' : [33, 39] };
-
-    var style =
-        { 'special': 'cyan',
-          'number': 'blue',
-          'boolean': 'yellow',
-          'undefined': 'grey',
-          'null': 'bold',
-          'string': 'green',
-          'date': 'magenta',
-          // "name": intentionally not styling
-          'regexp': 'red' }[styleType];
-
-    if (style) {
-      return '\033[' + styles[style][0] + 'm' + str +
-             '\033[' + styles[style][1] + 'm';
-    } else {
-      return str;
-    }
-  };
-  if (! colors) {
-    stylize = function(str, styleType) { return str; };
-  }
-
-  function format(value, recurseTimes) {
-    // Provide a hook for user-specified inspect functions.
-    // Check that value is an object with an inspect function on it
-    if (value && typeof value.inspect === 'function' &&
-        // Filter out the util module, it's inspect function is special
-        value !== exports &&
-        // Also filter out any prototype objects using the circular check.
-        !(value.constructor && value.constructor.prototype === value)) {
-      return value.inspect(recurseTimes);
-    }
-
-    // Primitive types cannot have properties
-    switch (typeof value) {
-      case 'undefined':
-        return stylize('undefined', 'undefined');
-
-      case 'string':
-        var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
-                                                 .replace(/'/g, "\\'")
-                                                 .replace(/\\"/g, '"') + '\'';
-        return stylize(simple, 'string');
-
-      case 'number':
-        return stylize('' + value, 'number');
-
-      case 'boolean':
-        return stylize('' + value, 'boolean');
-    }
-    // For some reason typeof null is "object", so special case here.
-    if (value === null) {
-      return stylize('null', 'null');
-    }
-
-    // Look up the keys of the object.
-    var visible_keys = Object_keys(value);
-    var keys = showHidden ? Object_getOwnPropertyNames(value) : visible_keys;
-
-    // Functions without properties can be shortcutted.
-    if (typeof value === 'function' && keys.length === 0) {
-      if (isRegExp(value)) {
-        return stylize('' + value, 'regexp');
-      } else {
-        var name = value.name ? ': ' + value.name : '';
-        return stylize('[Function' + name + ']', 'special');
-      }
-    }
-
-    // Dates without properties can be shortcutted
-    if (isDate(value) && keys.length === 0) {
-      return stylize(value.toUTCString(), 'date');
-    }
-
-    var base, type, braces;
-    // Determine the object type
-    if (isArray(value)) {
-      type = 'Array';
-      braces = ['[', ']'];
-    } else {
-      type = 'Object';
-      braces = ['{', '}'];
-    }
-
-    // Make functions say that they are functions
-    if (typeof value === 'function') {
-      var n = value.name ? ': ' + value.name : '';
-      base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
-    } else {
-      base = '';
-    }
-
-    // Make dates with properties first say the date
-    if (isDate(value)) {
-      base = ' ' + value.toUTCString();
-    }
-
-    if (keys.length === 0) {
-      return braces[0] + base + braces[1];
-    }
-
-    if (recurseTimes < 0) {
-      if (isRegExp(value)) {
-        return stylize('' + value, 'regexp');
-      } else {
-        return stylize('[Object]', 'special');
-      }
-    }
-
-    seen.push(value);
-
-    var output = keys.map(function(key) {
-      var name, str;
-      if (value.__lookupGetter__) {
-        if (value.__lookupGetter__(key)) {
-          if (value.__lookupSetter__(key)) {
-            str = stylize('[Getter/Setter]', 'special');
-          } else {
-            str = stylize('[Getter]', 'special');
-          }
-        } else {
-          if (value.__lookupSetter__(key)) {
-            str = stylize('[Setter]', 'special');
-          }
-        }
-      }
-      if (visible_keys.indexOf(key) < 0) {
-        name = '[' + key + ']';
-      }
-      if (!str) {
-        if (seen.indexOf(value[key]) < 0) {
-          if (recurseTimes === null) {
-            str = format(value[key]);
-          } else {
-            str = format(value[key], recurseTimes - 1);
-          }
-          if (str.indexOf('\n') > -1) {
-            if (isArray(value)) {
-              str = str.split('\n').map(function(line) {
-                return '  ' + line;
-              }).join('\n').substr(2);
-            } else {
-              str = '\n' + str.split('\n').map(function(line) {
-                return '   ' + line;
-              }).join('\n');
-            }
-          }
-        } else {
-          str = stylize('[Circular]', 'special');
-        }
-      }
-      if (typeof name === 'undefined') {
-        if (type === 'Array' && key.match(/^\d+$/)) {
-          return str;
-        }
-        name = JSON.stringify('' + key);
-        if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
-          name = name.substr(1, name.length - 2);
-          name = stylize(name, 'name');
-        } else {
-          name = name.replace(/'/g, "\\'")
-                     .replace(/\\"/g, '"')
-                     .replace(/(^"|"$)/g, "'");
-          name = stylize(name, 'string');
-        }
-      }
-
-      return name + ': ' + str;
-    });
-
-    seen.pop();
-
-    var numLinesEst = 0;
-    var length = output.reduce(function(prev, cur) {
-      numLinesEst++;
-      if (cur.indexOf('\n') >= 0) numLinesEst++;
-      return prev + cur.length + 1;
-    }, 0);
-
-    if (length > 50) {
-      output = braces[0] +
-               (base === '' ? '' : base + '\n ') +
-               ' ' +
-               output.join(',\n  ') +
-               ' ' +
-               braces[1];
-
-    } else {
-      output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
-    }
-
-    return output;
-  }
-  return format(obj, (typeof depth === 'undefined' ? 2 : depth));
-};
-
-
-function isArray(ar) {
-  return ar instanceof Array ||
-         Array.isArray(ar) ||
-         (ar && ar !== Object.prototype && isArray(ar.__proto__));
-}
-
-
-function isRegExp(re) {
-  return re instanceof RegExp ||
-    (typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]');
-}
-
-
-function isDate(d) {
-  if (d instanceof Date) return true;
-  if (typeof d !== 'object') return false;
-  var properties = Date.prototype && Object_getOwnPropertyNames(Date.prototype);
-  var proto = d.__proto__ && Object_getOwnPropertyNames(d.__proto__);
-  return JSON.stringify(proto) === JSON.stringify(properties);
-}
-
-function pad(n) {
-  return n < 10 ? '0' + n.toString(10) : n.toString(10);
-}
-
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
-              'Oct', 'Nov', 'Dec'];
-
-// 26 Feb 16:19:34
-function timestamp() {
-  var d = new Date();
-  var time = [pad(d.getHours()),
-              pad(d.getMinutes()),
-              pad(d.getSeconds())].join(':');
-  return [d.getDate(), months[d.getMonth()], time].join(' ');
-}
-
-exports.log = function (msg) {};
-
-exports.pump = null;
-
-var Object_keys = Object.keys || function (obj) {
-    var res = [];
-    for (var key in obj) res.push(key);
-    return res;
-};
-
-var Object_getOwnPropertyNames = Object.getOwnPropertyNames || function (obj) {
-    var res = [];
-    for (var key in obj) {
-        if (Object.hasOwnProperty.call(obj, key)) res.push(key);
-    }
-    return res;
-};
-
-var Object_create = Object.create || function (prototype, properties) {
-    // from es5-shim
-    var object;
-    if (prototype === null) {
-        object = { '__proto__' : null };
-    }
-    else {
-        if (typeof prototype !== 'object') {
-            throw new TypeError(
-                'typeof prototype[' + (typeof prototype) + '] != \'object\''
-            );
-        }
-        var Type = function () {};
-        Type.prototype = prototype;
-        object = new Type();
-        object.__proto__ = prototype;
-    }
-    if (typeof properties !== 'undefined' && Object.defineProperties) {
-        Object.defineProperties(object, properties);
-    }
-    return object;
-};
-
-exports.inherits = function(ctor, superCtor) {
-  ctor.super_ = superCtor;
-  ctor.prototype = Object_create(superCtor.prototype, {
-    constructor: {
-      value: ctor,
-      enumerable: false,
-      writable: true,
-      configurable: true
-    }
-  });
-};
-
-var formatRegExp = /%[sdj%]/g;
-exports.format = function(f) {
-  if (typeof f !== 'string') {
-    var objects = [];
-    for (var i = 0; i < arguments.length; i++) {
-      objects.push(exports.inspect(arguments[i]));
-    }
-    return objects.join(' ');
-  }
-
-  var i = 1;
-  var args = arguments;
-  var len = args.length;
-  var str = String(f).replace(formatRegExp, function(x) {
-    if (x === '%%') return '%';
-    if (i >= len) return x;
-    switch (x) {
-      case '%s': return String(args[i++]);
-      case '%d': return Number(args[i++]);
-      case '%j': return JSON.stringify(args[i++]);
-      default:
-        return x;
-    }
-  });
-  for(var x = args[i]; i < len; x = args[++i]){
-    if (x === null || typeof x !== 'object') {
-      str += ' ' + x;
-    } else {
-      str += ' ' + exports.inspect(x);
-    }
-  }
-  return str;
-};
-
-},{"events":5}],6:[function(require,module,exports){
-exports.readIEEE754 = function(buffer, offset, isBE, mLen, nBytes) {
-  var e, m,
-      eLen = nBytes * 8 - mLen - 1,
-      eMax = (1 << eLen) - 1,
-      eBias = eMax >> 1,
-      nBits = -7,
-      i = isBE ? 0 : (nBytes - 1),
-      d = isBE ? 1 : -1,
-      s = buffer[offset + i];
-
-  i += d;
-
-  e = s & ((1 << (-nBits)) - 1);
-  s >>= (-nBits);
-  nBits += eLen;
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
-
-  m = e & ((1 << (-nBits)) - 1);
-  e >>= (-nBits);
-  nBits += mLen;
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
-
-  if (e === 0) {
-    e = 1 - eBias;
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity);
-  } else {
-    m = m + Math.pow(2, mLen);
-    e = e - eBias;
-  }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
-};
-
-exports.writeIEEE754 = function(buffer, value, offset, isBE, mLen, nBytes) {
-  var e, m, c,
-      eLen = nBytes * 8 - mLen - 1,
-      eMax = (1 << eLen) - 1,
-      eBias = eMax >> 1,
-      rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
-      i = isBE ? (nBytes - 1) : 0,
-      d = isBE ? -1 : 1,
-      s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
-
-  value = Math.abs(value);
-
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0;
-    e = eMax;
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2);
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--;
-      c *= 2;
-    }
-    if (e + eBias >= 1) {
-      value += rt / c;
-    } else {
-      value += rt * Math.pow(2, 1 - eBias);
-    }
-    if (value * c >= 2) {
-      e++;
-      c /= 2;
-    }
-
-    if (e + eBias >= eMax) {
-      m = 0;
-      e = eMax;
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen);
-      e = e + eBias;
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
-      e = 0;
-    }
-  }
-
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
-
-  e = (e << mLen) | m;
-  eLen += mLen;
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
-
-  buffer[offset + i - d] |= s * 128;
-};
-
-},{}],7:[function(require,module,exports){
-// shim for using process in browser
-
-var process = module.exports = {};
-
-process.nextTick = (function () {
-    var canSetImmediate = typeof window !== 'undefined'
-    && window.setImmediate;
-    var canPost = typeof window !== 'undefined'
-    && window.postMessage && window.addEventListener
-    ;
-
-    if (canSetImmediate) {
-        return function (f) { return window.setImmediate(f) };
-    }
-
-    if (canPost) {
-        var queue = [];
-        window.addEventListener('message', function (ev) {
-            var source = ev.source;
-            if ((source === window || source === null) && ev.data === 'process-tick') {
-                ev.stopPropagation();
-                if (queue.length > 0) {
-                    var fn = queue.shift();
-                    fn();
-                }
-            }
-        }, true);
-
-        return function nextTick(fn) {
-            queue.push(fn);
-            window.postMessage('process-tick', '*');
-        };
-    }
-
-    return function nextTick(fn) {
-        setTimeout(fn, 0);
-    };
-})();
-
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-}
-
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-
-},{}],5:[function(require,module,exports){
-(function(process){if (!process.EventEmitter) process.EventEmitter = function () {};
-
-var EventEmitter = exports.EventEmitter = process.EventEmitter;
-var isArray = typeof Array.isArray === 'function'
-    ? Array.isArray
-    : function (xs) {
-        return Object.prototype.toString.call(xs) === '[object Array]'
-    }
-;
-function indexOf (xs, x) {
-    if (xs.indexOf) return xs.indexOf(x);
-    for (var i = 0; i < xs.length; i++) {
-        if (x === xs[i]) return i;
-    }
-    return -1;
-}
-
-// By default EventEmitters will print a warning if more than
-// 10 listeners are added to it. This is a useful default which
-// helps finding memory leaks.
-//
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-var defaultMaxListeners = 10;
-EventEmitter.prototype.setMaxListeners = function(n) {
-  if (!this._events) this._events = {};
-  this._events.maxListeners = n;
-};
-
-
-EventEmitter.prototype.emit = function(type) {
-  // If there is no 'error' event listener then throw.
-  if (type === 'error') {
-    if (!this._events || !this._events.error ||
-        (isArray(this._events.error) && !this._events.error.length))
-    {
-      if (arguments[1] instanceof Error) {
-        throw arguments[1]; // Unhandled 'error' event
-      } else {
-        throw new Error("Uncaught, unspecified 'error' event.");
-      }
-      return false;
-    }
-  }
-
-  if (!this._events) return false;
-  var handler = this._events[type];
-  if (!handler) return false;
-
-  if (typeof handler == 'function') {
-    switch (arguments.length) {
-      // fast cases
-      case 1:
-        handler.call(this);
-        break;
-      case 2:
-        handler.call(this, arguments[1]);
-        break;
-      case 3:
-        handler.call(this, arguments[1], arguments[2]);
-        break;
-      // slower
-      default:
-        var args = Array.prototype.slice.call(arguments, 1);
-        handler.apply(this, args);
-    }
-    return true;
-
-  } else if (isArray(handler)) {
-    var args = Array.prototype.slice.call(arguments, 1);
-
-    var listeners = handler.slice();
-    for (var i = 0, l = listeners.length; i < l; i++) {
-      listeners[i].apply(this, args);
-    }
-    return true;
-
-  } else {
-    return false;
-  }
-};
-
-// EventEmitter is defined in src/node_events.cc
-// EventEmitter.prototype.emit() is also defined there.
-EventEmitter.prototype.addListener = function(type, listener) {
-  if ('function' !== typeof listener) {
-    throw new Error('addListener only takes instances of Function');
-  }
-
-  if (!this._events) this._events = {};
-
-  // To avoid recursion in the case that type == "newListeners"! Before
-  // adding it to the listeners, first emit "newListeners".
-  this.emit('newListener', type, listener);
-
-  if (!this._events[type]) {
-    // Optimize the case of one listener. Don't need the extra array object.
-    this._events[type] = listener;
-  } else if (isArray(this._events[type])) {
-
-    // Check for listener leak
-    if (!this._events[type].warned) {
-      var m;
-      if (this._events.maxListeners !== undefined) {
-        m = this._events.maxListeners;
-      } else {
-        m = defaultMaxListeners;
-      }
-
-      if (m && m > 0 && this._events[type].length > m) {
-        this._events[type].warned = true;
-        console.error('(node) warning: possible EventEmitter memory ' +
-                      'leak detected. %d listeners added. ' +
-                      'Use emitter.setMaxListeners() to increase limit.',
-                      this._events[type].length);
-        console.trace();
-      }
-    }
-
-    // If we've already got an array, just append.
-    this._events[type].push(listener);
-  } else {
-    // Adding the second element, need to change to array.
-    this._events[type] = [this._events[type], listener];
-  }
-
-  return this;
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-
-EventEmitter.prototype.once = function(type, listener) {
-  var self = this;
-  self.on(type, function g() {
-    self.removeListener(type, g);
-    listener.apply(this, arguments);
-  });
-
-  return this;
-};
-
-EventEmitter.prototype.removeListener = function(type, listener) {
-  if ('function' !== typeof listener) {
-    throw new Error('removeListener only takes instances of Function');
-  }
-
-  // does not use listeners(), so no side effect of creating _events[type]
-  if (!this._events || !this._events[type]) return this;
-
-  var list = this._events[type];
-
-  if (isArray(list)) {
-    var i = indexOf(list, listener);
-    if (i < 0) return this;
-    list.splice(i, 1);
-    if (list.length == 0)
-      delete this._events[type];
-  } else if (this._events[type] === listener) {
-    delete this._events[type];
-  }
-
-  return this;
-};
-
-EventEmitter.prototype.removeAllListeners = function(type) {
-  if (arguments.length === 0) {
-    this._events = {};
-    return this;
-  }
-
-  // does not use listeners(), so no side effect of creating _events[type]
-  if (type && this._events && this._events[type]) this._events[type] = null;
-  return this;
-};
-
-EventEmitter.prototype.listeners = function(type) {
-  if (!this._events) this._events = {};
-  if (!this._events[type]) this._events[type] = [];
-  if (!isArray(this._events[type])) {
-    this._events[type] = [this._events[type]];
-  }
-  return this._events[type];
-};
-
-})(require("__browserify_process"))
-},{"__browserify_process":7}],2:[function(require,module,exports){
-(function(){function SlowBuffer (size) {
-    this.length = size;
-};
-
-var assert = require('assert');
-
-exports.INSPECT_MAX_BYTES = 50;
-
-
-function toHex(n) {
-  if (n < 16) return '0' + n.toString(16);
-  return n.toString(16);
-}
-
-function utf8ToBytes(str) {
-  var byteArray = [];
-  for (var i = 0; i < str.length; i++)
-    if (str.charCodeAt(i) <= 0x7F)
-      byteArray.push(str.charCodeAt(i));
-    else {
-      var h = encodeURIComponent(str.charAt(i)).substr(1).split('%');
-      for (var j = 0; j < h.length; j++)
-        byteArray.push(parseInt(h[j], 16));
-    }
-
-  return byteArray;
-}
-
-function asciiToBytes(str) {
-  var byteArray = []
-  for (var i = 0; i < str.length; i++ )
-    // Node's code seems to be doing this and not & 0x7F..
-    byteArray.push( str.charCodeAt(i) & 0xFF );
-
-  return byteArray;
-}
-
-function base64ToBytes(str) {
-  return require("base64-js").toByteArray(str);
-}
-
-SlowBuffer.byteLength = function (str, encoding) {
-  switch (encoding || "utf8") {
-    case 'hex':
-      return str.length / 2;
-
-    case 'utf8':
-    case 'utf-8':
-      return utf8ToBytes(str).length;
-
-    case 'ascii':
-    case 'binary':
-      return str.length;
-
-    case 'base64':
-      return base64ToBytes(str).length;
-
-    default:
-      throw new Error('Unknown encoding');
-  }
-};
-
-function blitBuffer(src, dst, offset, length) {
-  var pos, i = 0;
-  while (i < length) {
-    if ((i+offset >= dst.length) || (i >= src.length))
-      break;
-
-    dst[i + offset] = src[i];
-    i++;
-  }
-  return i;
-}
-
-SlowBuffer.prototype.utf8Write = function (string, offset, length) {
-  var bytes, pos;
-  return SlowBuffer._charsWritten =  blitBuffer(utf8ToBytes(string), this, offset, length);
-};
-
-SlowBuffer.prototype.asciiWrite = function (string, offset, length) {
-  var bytes, pos;
-  return SlowBuffer._charsWritten =  blitBuffer(asciiToBytes(string), this, offset, length);
-};
-
-SlowBuffer.prototype.binaryWrite = SlowBuffer.prototype.asciiWrite;
-
-SlowBuffer.prototype.base64Write = function (string, offset, length) {
-  var bytes, pos;
-  return SlowBuffer._charsWritten = blitBuffer(base64ToBytes(string), this, offset, length);
-};
-
-SlowBuffer.prototype.base64Slice = function (start, end) {
-  var bytes = Array.prototype.slice.apply(this, arguments)
-  return require("base64-js").fromByteArray(bytes);
-}
-
-function decodeUtf8Char(str) {
-  try {
-    return decodeURIComponent(str);
-  } catch (err) {
-    return String.fromCharCode(0xFFFD); // UTF 8 invalid char
-  }
-}
-
-SlowBuffer.prototype.utf8Slice = function () {
-  var bytes = Array.prototype.slice.apply(this, arguments);
-  var res = "";
-  var tmp = "";
-  var i = 0;
-  while (i < bytes.length) {
-    if (bytes[i] <= 0x7F) {
-      res += decodeUtf8Char(tmp) + String.fromCharCode(bytes[i]);
-      tmp = "";
-    } else
-      tmp += "%" + bytes[i].toString(16);
-
-    i++;
-  }
-
-  return res + decodeUtf8Char(tmp);
-}
-
-SlowBuffer.prototype.asciiSlice = function () {
-  var bytes = Array.prototype.slice.apply(this, arguments);
-  var ret = "";
-  for (var i = 0; i < bytes.length; i++)
-    ret += String.fromCharCode(bytes[i]);
-  return ret;
-}
-
-SlowBuffer.prototype.binarySlice = SlowBuffer.prototype.asciiSlice;
-
-SlowBuffer.prototype.inspect = function() {
-  var out = [],
-      len = this.length;
-  for (var i = 0; i < len; i++) {
-    out[i] = toHex(this[i]);
-    if (i == exports.INSPECT_MAX_BYTES) {
-      out[i + 1] = '...';
-      break;
-    }
-  }
-  return '<SlowBuffer ' + out.join(' ') + '>';
-};
-
-
-SlowBuffer.prototype.hexSlice = function(start, end) {
-  var len = this.length;
-
-  if (!start || start < 0) start = 0;
-  if (!end || end < 0 || end > len) end = len;
-
-  var out = '';
-  for (var i = start; i < end; i++) {
-    out += toHex(this[i]);
-  }
-  return out;
-};
-
-
-SlowBuffer.prototype.toString = function(encoding, start, end) {
-  encoding = String(encoding || 'utf8').toLowerCase();
-  start = +start || 0;
-  if (typeof end == 'undefined') end = this.length;
-
-  // Fastpath empty strings
-  if (+end == start) {
-    return '';
-  }
-
-  switch (encoding) {
-    case 'hex':
-      return this.hexSlice(start, end);
-
-    case 'utf8':
-    case 'utf-8':
-      return this.utf8Slice(start, end);
-
-    case 'ascii':
-      return this.asciiSlice(start, end);
-
-    case 'binary':
-      return this.binarySlice(start, end);
-
-    case 'base64':
-      return this.base64Slice(start, end);
-
-    case 'ucs2':
-    case 'ucs-2':
-      return this.ucs2Slice(start, end);
-
-    default:
-      throw new Error('Unknown encoding');
-  }
-};
-
-
-SlowBuffer.prototype.hexWrite = function(string, offset, length) {
-  offset = +offset || 0;
-  var remaining = this.length - offset;
-  if (!length) {
-    length = remaining;
-  } else {
-    length = +length;
-    if (length > remaining) {
-      length = remaining;
-    }
-  }
-
-  // must be an even number of digits
-  var strLen = string.length;
-  if (strLen % 2) {
-    throw new Error('Invalid hex string');
-  }
-  if (length > strLen / 2) {
-    length = strLen / 2;
-  }
-  for (var i = 0; i < length; i++) {
-    var byte = parseInt(string.substr(i * 2, 2), 16);
-    if (isNaN(byte)) throw new Error('Invalid hex string');
-    this[offset + i] = byte;
-  }
-  SlowBuffer._charsWritten = i * 2;
-  return i;
-};
-
-
-SlowBuffer.prototype.write = function(string, offset, length, encoding) {
-  // Support both (string, offset, length, encoding)
-  // and the legacy (string, encoding, offset, length)
-  if (isFinite(offset)) {
-    if (!isFinite(length)) {
-      encoding = length;
-      length = undefined;
-    }
-  } else {  // legacy
-    var swap = encoding;
-    encoding = offset;
-    offset = length;
-    length = swap;
-  }
-
-  offset = +offset || 0;
-  var remaining = this.length - offset;
-  if (!length) {
-    length = remaining;
-  } else {
-    length = +length;
-    if (length > remaining) {
-      length = remaining;
-    }
-  }
-  encoding = String(encoding || 'utf8').toLowerCase();
-
-  switch (encoding) {
-    case 'hex':
-      return this.hexWrite(string, offset, length);
-
-    case 'utf8':
-    case 'utf-8':
-      return this.utf8Write(string, offset, length);
-
-    case 'ascii':
-      return this.asciiWrite(string, offset, length);
-
-    case 'binary':
-      return this.binaryWrite(string, offset, length);
-
-    case 'base64':
-      return this.base64Write(string, offset, length);
-
-    case 'ucs2':
-    case 'ucs-2':
-      return this.ucs2Write(string, offset, length);
-
-    default:
-      throw new Error('Unknown encoding');
-  }
-};
-
-
-// slice(start, end)
-SlowBuffer.prototype.slice = function(start, end) {
-  if (end === undefined) end = this.length;
-
-  if (end > this.length) {
-    throw new Error('oob');
-  }
-  if (start > end) {
-    throw new Error('oob');
-  }
-
-  return new Buffer(this, end - start, +start);
-};
-
-SlowBuffer.prototype.copy = function(target, targetstart, sourcestart, sourceend) {
-  var temp = [];
-  for (var i=sourcestart; i<sourceend; i++) {
-    assert.ok(typeof this[i] !== 'undefined', "copying undefined buffer bytes!");
-    temp.push(this[i]);
-  }
-
-  for (var i=targetstart; i<targetstart+temp.length; i++) {
-    target[i] = temp[i-targetstart];
-  }
-};
-
-SlowBuffer.prototype.fill = function(value, start, end) {
-  if (end > this.length) {
-    throw new Error('oob');
-  }
-  if (start > end) {
-    throw new Error('oob');
-  }
-
-  for (var i = start; i < end; i++) {
-    this[i] = value;
-  }
-}
-
-function coerce(length) {
-  // Coerce length to a number (possibly NaN), round up
-  // in case it's fractional (e.g. 123.456) then do a
-  // double negate to coerce a NaN to 0. Easy, right?
-  length = ~~Math.ceil(+length);
-  return length < 0 ? 0 : length;
-}
-
-
-// Buffer
-
-function Buffer(subject, encoding, offset) {
-  if (!(this instanceof Buffer)) {
-    return new Buffer(subject, encoding, offset);
-  }
-
-  var type;
-
-  // Are we slicing?
-  if (typeof offset === 'number') {
-    this.length = coerce(encoding);
-    this.parent = subject;
-    this.offset = offset;
-  } else {
-    // Find the length
-    switch (type = typeof subject) {
-      case 'number':
-        this.length = coerce(subject);
-        break;
-
-      case 'string':
-        this.length = Buffer.byteLength(subject, encoding);
-        break;
-
-      case 'object': // Assume object is an array
-        this.length = coerce(subject.length);
-        break;
-
-      default:
-        throw new Error('First argument needs to be a number, ' +
-                        'array or string.');
-    }
-
-    if (this.length > Buffer.poolSize) {
-      // Big buffer, just alloc one.
-      this.parent = new SlowBuffer(this.length);
-      this.offset = 0;
-
-    } else {
-      // Small buffer.
-      if (!pool || pool.length - pool.used < this.length) allocPool();
-      this.parent = pool;
-      this.offset = pool.used;
-      pool.used += this.length;
-    }
-
-    // Treat array-ish objects as a byte array.
-    if (isArrayIsh(subject)) {
-      for (var i = 0; i < this.length; i++) {
-        if (subject instanceof Buffer) {
-          this.parent[i + this.offset] = subject.readUInt8(i);
-        }
-        else {
-          this.parent[i + this.offset] = subject[i];
-        }
-      }
-    } else if (type == 'string') {
-      // We are a string
-      this.length = this.write(subject, 0, encoding);
-    }
-  }
-
-}
-
-function isArrayIsh(subject) {
-  return Array.isArray(subject) || Buffer.isBuffer(subject) ||
-         subject && typeof subject === 'object' &&
-         typeof subject.length === 'number';
-}
-
-exports.SlowBuffer = SlowBuffer;
-exports.Buffer = Buffer;
-
-Buffer.poolSize = 8 * 1024;
-var pool;
-
-function allocPool() {
-  pool = new SlowBuffer(Buffer.poolSize);
-  pool.used = 0;
-}
-
-
-// Static methods
-Buffer.isBuffer = function isBuffer(b) {
-  return b instanceof Buffer || b instanceof SlowBuffer;
-};
-
-Buffer.concat = function (list, totalLength) {
-  if (!Array.isArray(list)) {
-    throw new Error("Usage: Buffer.concat(list, [totalLength])\n \
-      list should be an Array.");
-  }
-
-  if (list.length === 0) {
-    return new Buffer(0);
-  } else if (list.length === 1) {
-    return list[0];
-  }
-
-  if (typeof totalLength !== 'number') {
-    totalLength = 0;
-    for (var i = 0; i < list.length; i++) {
-      var buf = list[i];
-      totalLength += buf.length;
-    }
-  }
-
-  var buffer = new Buffer(totalLength);
-  var pos = 0;
-  for (var i = 0; i < list.length; i++) {
-    var buf = list[i];
-    buf.copy(buffer, pos);
-    pos += buf.length;
-  }
-  return buffer;
-};
-
-// Inspect
-Buffer.prototype.inspect = function inspect() {
-  var out = [],
-      len = this.length;
-
-  for (var i = 0; i < len; i++) {
-    out[i] = toHex(this.parent[i + this.offset]);
-    if (i == exports.INSPECT_MAX_BYTES) {
-      out[i + 1] = '...';
-      break;
-    }
-  }
-
-  return '<Buffer ' + out.join(' ') + '>';
-};
-
-
-Buffer.prototype.get = function get(i) {
-  if (i < 0 || i >= this.length) throw new Error('oob');
-  return this.parent[this.offset + i];
-};
-
-
-Buffer.prototype.set = function set(i, v) {
-  if (i < 0 || i >= this.length) throw new Error('oob');
-  return this.parent[this.offset + i] = v;
-};
-
-
-// write(string, offset = 0, length = buffer.length-offset, encoding = 'utf8')
-Buffer.prototype.write = function(string, offset, length, encoding) {
-  // Support both (string, offset, length, encoding)
-  // and the legacy (string, encoding, offset, length)
-  if (isFinite(offset)) {
-    if (!isFinite(length)) {
-      encoding = length;
-      length = undefined;
-    }
-  } else {  // legacy
-    var swap = encoding;
-    encoding = offset;
-    offset = length;
-    length = swap;
-  }
-
-  offset = +offset || 0;
-  var remaining = this.length - offset;
-  if (!length) {
-    length = remaining;
-  } else {
-    length = +length;
-    if (length > remaining) {
-      length = remaining;
-    }
-  }
-  encoding = String(encoding || 'utf8').toLowerCase();
-
-  var ret;
-  switch (encoding) {
-    case 'hex':
-      ret = this.parent.hexWrite(string, this.offset + offset, length);
-      break;
-
-    case 'utf8':
-    case 'utf-8':
-      ret = this.parent.utf8Write(string, this.offset + offset, length);
-      break;
-
-    case 'ascii':
-      ret = this.parent.asciiWrite(string, this.offset + offset, length);
-      break;
-
-    case 'binary':
-      ret = this.parent.binaryWrite(string, this.offset + offset, length);
-      break;
-
-    case 'base64':
-      // Warning: maxLength not taken into account in base64Write
-      ret = this.parent.base64Write(string, this.offset + offset, length);
-      break;
-
-    case 'ucs2':
-    case 'ucs-2':
-      ret = this.parent.ucs2Write(string, this.offset + offset, length);
-      break;
-
-    default:
-      throw new Error('Unknown encoding');
-  }
-
-  Buffer._charsWritten = SlowBuffer._charsWritten;
-
-  return ret;
-};
-
-
-// toString(encoding, start=0, end=buffer.length)
-Buffer.prototype.toString = function(encoding, start, end) {
-  encoding = String(encoding || 'utf8').toLowerCase();
-
-  if (typeof start == 'undefined' || start < 0) {
-    start = 0;
-  } else if (start > this.length) {
-    start = this.length;
-  }
-
-  if (typeof end == 'undefined' || end > this.length) {
-    end = this.length;
-  } else if (end < 0) {
-    end = 0;
-  }
-
-  start = start + this.offset;
-  end = end + this.offset;
-
-  switch (encoding) {
-    case 'hex':
-      return this.parent.hexSlice(start, end);
-
-    case 'utf8':
-    case 'utf-8':
-      return this.parent.utf8Slice(start, end);
-
-    case 'ascii':
-      return this.parent.asciiSlice(start, end);
-
-    case 'binary':
-      return this.parent.binarySlice(start, end);
-
-    case 'base64':
-      return this.parent.base64Slice(start, end);
-
-    case 'ucs2':
-    case 'ucs-2':
-      return this.parent.ucs2Slice(start, end);
-
-    default:
-      throw new Error('Unknown encoding');
-  }
-};
-
-
-// byteLength
-Buffer.byteLength = SlowBuffer.byteLength;
-
-
-// fill(value, start=0, end=buffer.length)
-Buffer.prototype.fill = function fill(value, start, end) {
-  value || (value = 0);
-  start || (start = 0);
-  end || (end = this.length);
-
-  if (typeof value === 'string') {
-    value = value.charCodeAt(0);
-  }
-  if (!(typeof value === 'number') || isNaN(value)) {
-    throw new Error('value is not a number');
-  }
-
-  if (end < start) throw new Error('end < start');
-
-  // Fill 0 bytes; we're done
-  if (end === start) return 0;
-  if (this.length == 0) return 0;
-
-  if (start < 0 || start >= this.length) {
-    throw new Error('start out of bounds');
-  }
-
-  if (end < 0 || end > this.length) {
-    throw new Error('end out of bounds');
-  }
-
-  return this.parent.fill(value,
-                          start + this.offset,
-                          end + this.offset);
-};
-
-
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function(target, target_start, start, end) {
-  var source = this;
-  start || (start = 0);
-  end || (end = this.length);
-  target_start || (target_start = 0);
-
-  if (end < start) throw new Error('sourceEnd < sourceStart');
-
-  // Copy 0 bytes; we're done
-  if (end === start) return 0;
-  if (target.length == 0 || source.length == 0) return 0;
-
-  if (target_start < 0 || target_start >= target.length) {
-    throw new Error('targetStart out of bounds');
-  }
-
-  if (start < 0 || start >= source.length) {
-    throw new Error('sourceStart out of bounds');
-  }
-
-  if (end < 0 || end > source.length) {
-    throw new Error('sourceEnd out of bounds');
-  }
-
-  // Are we oob?
-  if (end > this.length) {
-    end = this.length;
-  }
-
-  if (target.length - target_start < end - start) {
-    end = target.length - target_start + start;
-  }
-
-  return this.parent.copy(target.parent,
-                          target_start + target.offset,
-                          start + this.offset,
-                          end + this.offset);
-};
-
-
-// slice(start, end)
-Buffer.prototype.slice = function(start, end) {
-  if (end === undefined) end = this.length;
-  if (end > this.length) throw new Error('oob');
-  if (start > end) throw new Error('oob');
-
-  return new Buffer(this.parent, end - start, +start + this.offset);
-};
-
-
-// Legacy methods for backwards compatibility.
-
-Buffer.prototype.utf8Slice = function(start, end) {
-  return this.toString('utf8', start, end);
-};
-
-Buffer.prototype.binarySlice = function(start, end) {
-  return this.toString('binary', start, end);
-};
-
-Buffer.prototype.asciiSlice = function(start, end) {
-  return this.toString('ascii', start, end);
-};
-
-Buffer.prototype.utf8Write = function(string, offset) {
-  return this.write(string, offset, 'utf8');
-};
-
-Buffer.prototype.binaryWrite = function(string, offset) {
-  return this.write(string, offset, 'binary');
-};
-
-Buffer.prototype.asciiWrite = function(string, offset) {
-  return this.write(string, offset, 'ascii');
-};
-
-Buffer.prototype.readUInt8 = function(offset, noAssert) {
-  var buffer = this;
-
-  if (!noAssert) {
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  if (offset >= buffer.length) return;
-
-  return buffer.parent[buffer.offset + offset];
-};
-
-function readUInt16(buffer, offset, isBigEndian, noAssert) {
-  var val = 0;
-
-
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 1 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  if (offset >= buffer.length) return 0;
-
-  if (isBigEndian) {
-    val = buffer.parent[buffer.offset + offset] << 8;
-    if (offset + 1 < buffer.length) {
-      val |= buffer.parent[buffer.offset + offset + 1];
-    }
-  } else {
-    val = buffer.parent[buffer.offset + offset];
-    if (offset + 1 < buffer.length) {
-      val |= buffer.parent[buffer.offset + offset + 1] << 8;
-    }
-  }
-
-  return val;
-}
-
-Buffer.prototype.readUInt16LE = function(offset, noAssert) {
-  return readUInt16(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readUInt16BE = function(offset, noAssert) {
-  return readUInt16(this, offset, true, noAssert);
-};
-
-function readUInt32(buffer, offset, isBigEndian, noAssert) {
-  var val = 0;
-
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 3 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  if (offset >= buffer.length) return 0;
-
-  if (isBigEndian) {
-    if (offset + 1 < buffer.length)
-      val = buffer.parent[buffer.offset + offset + 1] << 16;
-    if (offset + 2 < buffer.length)
-      val |= buffer.parent[buffer.offset + offset + 2] << 8;
-    if (offset + 3 < buffer.length)
-      val |= buffer.parent[buffer.offset + offset + 3];
-    val = val + (buffer.parent[buffer.offset + offset] << 24 >>> 0);
-  } else {
-    if (offset + 2 < buffer.length)
-      val = buffer.parent[buffer.offset + offset + 2] << 16;
-    if (offset + 1 < buffer.length)
-      val |= buffer.parent[buffer.offset + offset + 1] << 8;
-    val |= buffer.parent[buffer.offset + offset];
-    if (offset + 3 < buffer.length)
-      val = val + (buffer.parent[buffer.offset + offset + 3] << 24 >>> 0);
-  }
-
-  return val;
-}
-
-Buffer.prototype.readUInt32LE = function(offset, noAssert) {
-  return readUInt32(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readUInt32BE = function(offset, noAssert) {
-  return readUInt32(this, offset, true, noAssert);
-};
-
-
-/*
- * Signed integer types, yay team! A reminder on how two's complement actually
- * works. The first bit is the signed bit, i.e. tells us whether or not the
- * number should be positive or negative. If the two's complement value is
- * positive, then we're done, as it's equivalent to the unsigned representation.
- *
- * Now if the number is positive, you're pretty much done, you can just leverage
- * the unsigned translations and return those. Unfortunately, negative numbers
- * aren't quite that straightforward.
- *
- * At first glance, one might be inclined to use the traditional formula to
- * translate binary numbers between the positive and negative values in two's
- * complement. (Though it doesn't quite work for the most negative value)
- * Mainly:
- *  - invert all the bits
- *  - add one to the result
- *
- * Of course, this doesn't quite work in Javascript. Take for example the value
- * of -128. This could be represented in 16 bits (big-endian) as 0xff80. But of
- * course, Javascript will do the following:
- *
- * > ~0xff80
- * -65409
- *
- * Whoh there, Javascript, that's not quite right. But wait, according to
- * Javascript that's perfectly correct. When Javascript ends up seeing the
- * constant 0xff80, it has no notion that it is actually a signed number. It
- * assumes that we've input the unsigned value 0xff80. Thus, when it does the
- * binary negation, it casts it into a signed value, (positive 0xff80). Then
- * when you perform binary negation on that, it turns it into a negative number.
- *
- * Instead, we're going to have to use the following general formula, that works
- * in a rather Javascript friendly way. I'm glad we don't support this kind of
- * weird numbering scheme in the kernel.
- *
- * (BIT-MAX - (unsigned)val + 1) * -1
- *
- * The astute observer, may think that this doesn't make sense for 8-bit numbers
- * (really it isn't necessary for them). However, when you get 16-bit numbers,
- * you do. Let's go back to our prior example and see how this will look:
- *
- * (0xffff - 0xff80 + 1) * -1
- * (0x007f + 1) * -1
- * (0x0080) * -1
- */
-Buffer.prototype.readInt8 = function(offset, noAssert) {
-  var buffer = this;
-  var neg;
-
-  if (!noAssert) {
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  if (offset >= buffer.length) return;
-
-  neg = buffer.parent[buffer.offset + offset] & 0x80;
-  if (!neg) {
-    return (buffer.parent[buffer.offset + offset]);
-  }
-
-  return ((0xff - buffer.parent[buffer.offset + offset] + 1) * -1);
-};
-
-function readInt16(buffer, offset, isBigEndian, noAssert) {
-  var neg, val;
-
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 1 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  val = readUInt16(buffer, offset, isBigEndian, noAssert);
-  neg = val & 0x8000;
-  if (!neg) {
-    return val;
-  }
-
-  return (0xffff - val + 1) * -1;
-}
-
-Buffer.prototype.readInt16LE = function(offset, noAssert) {
-  return readInt16(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readInt16BE = function(offset, noAssert) {
-  return readInt16(this, offset, true, noAssert);
-};
-
-function readInt32(buffer, offset, isBigEndian, noAssert) {
-  var neg, val;
-
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 3 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  val = readUInt32(buffer, offset, isBigEndian, noAssert);
-  neg = val & 0x80000000;
-  if (!neg) {
-    return (val);
-  }
-
-  return (0xffffffff - val + 1) * -1;
-}
-
-Buffer.prototype.readInt32LE = function(offset, noAssert) {
-  return readInt32(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readInt32BE = function(offset, noAssert) {
-  return readInt32(this, offset, true, noAssert);
-};
-
-function readFloat(buffer, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset + 3 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
-      23, 4);
-}
-
-Buffer.prototype.readFloatLE = function(offset, noAssert) {
-  return readFloat(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readFloatBE = function(offset, noAssert) {
-  return readFloat(this, offset, true, noAssert);
-};
-
-function readDouble(buffer, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset + 7 < buffer.length,
-        'Trying to read beyond buffer length');
-  }
-
-  return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
-      52, 8);
-}
-
-Buffer.prototype.readDoubleLE = function(offset, noAssert) {
-  return readDouble(this, offset, false, noAssert);
-};
-
-Buffer.prototype.readDoubleBE = function(offset, noAssert) {
-  return readDouble(this, offset, true, noAssert);
-};
-
-
-/*
- * We have to make sure that the value is a valid integer. This means that it is
- * non-negative. It has no fractional component and that it does not exceed the
- * maximum allowed value.
- *
- *      value           The number to check for validity
- *
- *      max             The maximum value
- */
-function verifuint(value, max) {
-  assert.ok(typeof (value) == 'number',
-      'cannot write a non-number as a number');
-
-  assert.ok(value >= 0,
-      'specified a negative value for writing an unsigned value');
-
-  assert.ok(value <= max, 'value is larger than maximum value for type');
-
-  assert.ok(Math.floor(value) === value, 'value has a fractional component');
-}
-
-Buffer.prototype.writeUInt8 = function(value, offset, noAssert) {
-  var buffer = this;
-
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset < buffer.length,
-        'trying to write beyond buffer length');
-
-    verifuint(value, 0xff);
-  }
-
-  if (offset < buffer.length) {
-    buffer.parent[buffer.offset + offset] = value;
-  }
-};
-
-function writeUInt16(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 1 < buffer.length,
-        'trying to write beyond buffer length');
-
-    verifuint(value, 0xffff);
-  }
-
-  for (var i = 0; i < Math.min(buffer.length - offset, 2); i++) {
-    buffer.parent[buffer.offset + offset + i] =
-        (value & (0xff << (8 * (isBigEndian ? 1 - i : i)))) >>>
-            (isBigEndian ? 1 - i : i) * 8;
-  }
-
-}
-
-Buffer.prototype.writeUInt16LE = function(value, offset, noAssert) {
-  writeUInt16(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeUInt16BE = function(value, offset, noAssert) {
-  writeUInt16(this, value, offset, true, noAssert);
-};
-
-function writeUInt32(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 3 < buffer.length,
-        'trying to write beyond buffer length');
-
-    verifuint(value, 0xffffffff);
-  }
-
-  for (var i = 0; i < Math.min(buffer.length - offset, 4); i++) {
-    buffer.parent[buffer.offset + offset + i] =
-        (value >>> (isBigEndian ? 3 - i : i) * 8) & 0xff;
-  }
-}
-
-Buffer.prototype.writeUInt32LE = function(value, offset, noAssert) {
-  writeUInt32(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeUInt32BE = function(value, offset, noAssert) {
-  writeUInt32(this, value, offset, true, noAssert);
-};
-
-
-/*
- * We now move onto our friends in the signed number category. Unlike unsigned
- * numbers, we're going to have to worry a bit more about how we put values into
- * arrays. Since we are only worrying about signed 32-bit values, we're in
- * slightly better shape. Unfortunately, we really can't do our favorite binary
- * & in this system. It really seems to do the wrong thing. For example:
- *
- * > -32 & 0xff
- * 224
- *
- * What's happening above is really: 0xe0 & 0xff = 0xe0. However, the results of
- * this aren't treated as a signed number. Ultimately a bad thing.
- *
- * What we're going to want to do is basically create the unsigned equivalent of
- * our representation and pass that off to the wuint* functions. To do that
- * we're going to do the following:
- *
- *  - if the value is positive
- *      we can pass it directly off to the equivalent wuint
- *  - if the value is negative
- *      we do the following computation:
- *         mb + val + 1, where
- *         mb   is the maximum unsigned value in that byte size
- *         val  is the Javascript negative integer
- *
- *
- * As a concrete value, take -128. In signed 16 bits this would be 0xff80. If
- * you do out the computations:
- *
- * 0xffff - 128 + 1
- * 0xffff - 127
- * 0xff80
- *
- * You can then encode this value as the signed version. This is really rather
- * hacky, but it should work and get the job done which is our goal here.
- */
-
-/*
- * A series of checks to make sure we actually have a signed 32-bit number
- */
-function verifsint(value, max, min) {
-  assert.ok(typeof (value) == 'number',
-      'cannot write a non-number as a number');
-
-  assert.ok(value <= max, 'value larger than maximum allowed value');
-
-  assert.ok(value >= min, 'value smaller than minimum allowed value');
-
-  assert.ok(Math.floor(value) === value, 'value has a fractional component');
-}
-
-function verifIEEE754(value, max, min) {
-  assert.ok(typeof (value) == 'number',
-      'cannot write a non-number as a number');
-
-  assert.ok(value <= max, 'value larger than maximum allowed value');
-
-  assert.ok(value >= min, 'value smaller than minimum allowed value');
-}
-
-Buffer.prototype.writeInt8 = function(value, offset, noAssert) {
-  var buffer = this;
-
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset < buffer.length,
-        'Trying to write beyond buffer length');
-
-    verifsint(value, 0x7f, -0x80);
-  }
-
-  if (value >= 0) {
-    buffer.writeUInt8(value, offset, noAssert);
-  } else {
-    buffer.writeUInt8(0xff + value + 1, offset, noAssert);
-  }
-};
-
-function writeInt16(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 1 < buffer.length,
-        'Trying to write beyond buffer length');
-
-    verifsint(value, 0x7fff, -0x8000);
-  }
-
-  if (value >= 0) {
-    writeUInt16(buffer, value, offset, isBigEndian, noAssert);
-  } else {
-    writeUInt16(buffer, 0xffff + value + 1, offset, isBigEndian, noAssert);
-  }
-}
-
-Buffer.prototype.writeInt16LE = function(value, offset, noAssert) {
-  writeInt16(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeInt16BE = function(value, offset, noAssert) {
-  writeInt16(this, value, offset, true, noAssert);
-};
-
-function writeInt32(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 3 < buffer.length,
-        'Trying to write beyond buffer length');
-
-    verifsint(value, 0x7fffffff, -0x80000000);
-  }
-
-  if (value >= 0) {
-    writeUInt32(buffer, value, offset, isBigEndian, noAssert);
-  } else {
-    writeUInt32(buffer, 0xffffffff + value + 1, offset, isBigEndian, noAssert);
-  }
-}
-
-Buffer.prototype.writeInt32LE = function(value, offset, noAssert) {
-  writeInt32(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeInt32BE = function(value, offset, noAssert) {
-  writeInt32(this, value, offset, true, noAssert);
-};
-
-function writeFloat(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 3 < buffer.length,
-        'Trying to write beyond buffer length');
-
-    verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38);
-  }
-
-  require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
-      23, 4);
-}
-
-Buffer.prototype.writeFloatLE = function(value, offset, noAssert) {
-  writeFloat(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeFloatBE = function(value, offset, noAssert) {
-  writeFloat(this, value, offset, true, noAssert);
-};
-
-function writeDouble(buffer, value, offset, isBigEndian, noAssert) {
-  if (!noAssert) {
-    assert.ok(value !== undefined && value !== null,
-        'missing value');
-
-    assert.ok(typeof (isBigEndian) === 'boolean',
-        'missing or invalid endian');
-
-    assert.ok(offset !== undefined && offset !== null,
-        'missing offset');
-
-    assert.ok(offset + 7 < buffer.length,
-        'Trying to write beyond buffer length');
-
-    verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308);
-  }
-
-  require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
-      52, 8);
-}
-
-Buffer.prototype.writeDoubleLE = function(value, offset, noAssert) {
-  writeDouble(this, value, offset, false, noAssert);
-};
-
-Buffer.prototype.writeDoubleBE = function(value, offset, noAssert) {
-  writeDouble(this, value, offset, true, noAssert);
-};
-
-SlowBuffer.prototype.readUInt8 = Buffer.prototype.readUInt8;
-SlowBuffer.prototype.readUInt16LE = Buffer.prototype.readUInt16LE;
-SlowBuffer.prototype.readUInt16BE = Buffer.prototype.readUInt16BE;
-SlowBuffer.prototype.readUInt32LE = Buffer.prototype.readUInt32LE;
-SlowBuffer.prototype.readUInt32BE = Buffer.prototype.readUInt32BE;
-SlowBuffer.prototype.readInt8 = Buffer.prototype.readInt8;
-SlowBuffer.prototype.readInt16LE = Buffer.prototype.readInt16LE;
-SlowBuffer.prototype.readInt16BE = Buffer.prototype.readInt16BE;
-SlowBuffer.prototype.readInt32LE = Buffer.prototype.readInt32LE;
-SlowBuffer.prototype.readInt32BE = Buffer.prototype.readInt32BE;
-SlowBuffer.prototype.readFloatLE = Buffer.prototype.readFloatLE;
-SlowBuffer.prototype.readFloatBE = Buffer.prototype.readFloatBE;
-SlowBuffer.prototype.readDoubleLE = Buffer.prototype.readDoubleLE;
-SlowBuffer.prototype.readDoubleBE = Buffer.prototype.readDoubleBE;
-SlowBuffer.prototype.writeUInt8 = Buffer.prototype.writeUInt8;
-SlowBuffer.prototype.writeUInt16LE = Buffer.prototype.writeUInt16LE;
-SlowBuffer.prototype.writeUInt16BE = Buffer.prototype.writeUInt16BE;
-SlowBuffer.prototype.writeUInt32LE = Buffer.prototype.writeUInt32LE;
-SlowBuffer.prototype.writeUInt32BE = Buffer.prototype.writeUInt32BE;
-SlowBuffer.prototype.writeInt8 = Buffer.prototype.writeInt8;
-SlowBuffer.prototype.writeInt16LE = Buffer.prototype.writeInt16LE;
-SlowBuffer.prototype.writeInt16BE = Buffer.prototype.writeInt16BE;
-SlowBuffer.prototype.writeInt32LE = Buffer.prototype.writeInt32LE;
-SlowBuffer.prototype.writeInt32BE = Buffer.prototype.writeInt32BE;
-SlowBuffer.prototype.writeFloatLE = Buffer.prototype.writeFloatLE;
-SlowBuffer.prototype.writeFloatBE = Buffer.prototype.writeFloatBE;
-SlowBuffer.prototype.writeDoubleLE = Buffer.prototype.writeDoubleLE;
-SlowBuffer.prototype.writeDoubleBE = Buffer.prototype.writeDoubleBE;
-
-})()
-},{"assert":3,"./buffer_ieee754":6,"base64-js":8}],8:[function(require,module,exports){
-(function (exports) {
-	'use strict';
-
-	var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-	function b64ToByteArray(b64) {
-		var i, j, l, tmp, placeHolders, arr;
-	
-		if (b64.length % 4 > 0) {
-			throw 'Invalid string. Length must be a multiple of 4';
-		}
-
-		// the number of equal signs (place holders)
-		// if there are two placeholders, than the two characters before it
-		// represent one byte
-		// if there is only one, then the three characters before it represent 2 bytes
-		// this is just a cheap hack to not do indexOf twice
-		placeHolders = b64.indexOf('=');
-		placeHolders = placeHolders > 0 ? b64.length - placeHolders : 0;
-
-		// base64 is 4/3 + up to two characters of the original data
-		arr = [];//new Uint8Array(b64.length * 3 / 4 - placeHolders);
-
-		// if there are placeholders, only get up to the last complete 4 chars
-		l = placeHolders > 0 ? b64.length - 4 : b64.length;
-
-		for (i = 0, j = 0; i < l; i += 4, j += 3) {
-			tmp = (lookup.indexOf(b64[i]) << 18) | (lookup.indexOf(b64[i + 1]) << 12) | (lookup.indexOf(b64[i + 2]) << 6) | lookup.indexOf(b64[i + 3]);
-			arr.push((tmp & 0xFF0000) >> 16);
-			arr.push((tmp & 0xFF00) >> 8);
-			arr.push(tmp & 0xFF);
-		}
-
-		if (placeHolders === 2) {
-			tmp = (lookup.indexOf(b64[i]) << 2) | (lookup.indexOf(b64[i + 1]) >> 4);
-			arr.push(tmp & 0xFF);
-		} else if (placeHolders === 1) {
-			tmp = (lookup.indexOf(b64[i]) << 10) | (lookup.indexOf(b64[i + 1]) << 4) | (lookup.indexOf(b64[i + 2]) >> 2);
-			arr.push((tmp >> 8) & 0xFF);
-			arr.push(tmp & 0xFF);
-		}
-
-		return arr;
-	}
-
-	function uint8ToBase64(uint8) {
-		var i,
-			extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
-			output = "",
-			temp, length;
-
-		function tripletToBase64 (num) {
-			return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];
-		};
-
-		// go through the array every three bytes, we'll deal with trailing stuff later
-		for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
-			temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]);
-			output += tripletToBase64(temp);
-		}
-
-		// pad the end with zeros, but make sure to not forget the extra bytes
-		switch (extraBytes) {
-			case 1:
-				temp = uint8[uint8.length - 1];
-				output += lookup[temp >> 2];
-				output += lookup[(temp << 4) & 0x3F];
-				output += '==';
-				break;
-			case 2:
-				temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]);
-				output += lookup[temp >> 10];
-				output += lookup[(temp >> 4) & 0x3F];
-				output += lookup[(temp << 2) & 0x3F];
-				output += '=';
-				break;
-		}
-
-		return output;
-	}
-
-	module.exports.toByteArray = b64ToByteArray;
-	module.exports.fromByteArray = uint8ToBase64;
-}());
-
 },{}]},{},[1])
 ;
\ No newline at end of file