build: Add some required modules for node

6 files changed, 867 insertions, 0 deletions

diff --git a/node_modules/core-util-is/LICENSE b/node_modules/core-util-is/LICENSE
new file mode 100644
index 0000000..d8d7f94
--- /dev/null
+++ b/node_modules/core-util-is/LICENSE
@@ -0,0 +1,19 @@
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/node_modules/core-util-is/README.md b/node_modules/core-util-is/README.md
new file mode 100644
index 0000000..5a76b41
--- /dev/null
+++ b/node_modules/core-util-is/README.md
@@ -0,0 +1,3 @@
+# core-util-is
+
+The `util.is*` functions introduced in Node v0.12.
diff --git a/node_modules/core-util-is/float.patch b/node_modules/core-util-is/float.patch
new file mode 100644
index 0000000..a06d5c0
--- /dev/null
+++ b/node_modules/core-util-is/float.patch
@@ -0,0 +1,604 @@
+diff --git a/lib/util.js b/lib/util.js
+index a03e874..9074e8e 100644
+--- a/lib/util.js
++++ b/lib/util.js
+@@ -19,430 +19,6 @@
+ // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ // USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+-var formatRegExp = /%[sdj%]/g;
+-exports.format = function(f) {
+-  if (!isString(f)) {
+-    var objects = [];
+-    for (var i = 0; i < arguments.length; i++) {
+-      objects.push(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':
+-        try {
+-          return JSON.stringify(args[i++]);
+-        } catch (_) {
+-          return '[Circular]';
+-        }
+-      default:
+-        return x;
+-    }
+-  });
+-  for (var x = args[i]; i < len; x = args[++i]) {
+-    if (isNull(x) || !isObject(x)) {
+-      str += ' ' + x;
+-    } else {
+-      str += ' ' + inspect(x);
+-    }
+-  }
+-  return str;
+-};
+-
+-
+-// Mark that a method should not be used.
+-// Returns a modified function which warns once by default.
+-// If --no-deprecation is set, then it is a no-op.
+-exports.deprecate = function(fn, msg) {
+-  // Allow for deprecating things in the process of starting up.
+-  if (isUndefined(global.process)) {
+-    return function() {
+-      return exports.deprecate(fn, msg).apply(this, arguments);
+-    };
+-  }
+-
+-  if (process.noDeprecation === true) {
+-    return fn;
+-  }
+-
+-  var warned = false;
+-  function deprecated() {
+-    if (!warned) {
+-      if (process.throwDeprecation) {
+-        throw new Error(msg);
+-      } else if (process.traceDeprecation) {
+-        console.trace(msg);
+-      } else {
+-        console.error(msg);
+-      }
+-      warned = true;
+-    }
+-    return fn.apply(this, arguments);
+-  }
+-
+-  return deprecated;
+-};
+-
+-
+-var debugs = {};
+-var debugEnviron;
+-exports.debuglog = function(set) {
+-  if (isUndefined(debugEnviron))
+-    debugEnviron = process.env.NODE_DEBUG || '';
+-  set = set.toUpperCase();
+-  if (!debugs[set]) {
+-    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
+-      var pid = process.pid;
+-      debugs[set] = function() {
+-        var msg = exports.format.apply(exports, arguments);
+-        console.error('%s %d: %s', set, pid, msg);
+-      };
+-    } else {
+-      debugs[set] = function() {};
+-    }
+-  }
+-  return debugs[set];
+-};
+-
+-
+-/**
+- * Echos the value of a value. Trys to print the value out
+- * in the best way possible given the different types.
+- *
+- * @param {Object} obj The object to print out.
+- * @param {Object} opts Optional options object that alters the output.
+- */
+-/* legacy: obj, showHidden, depth, colors*/
+-function inspect(obj, opts) {
+-  // default options
+-  var ctx = {
+-    seen: [],
+-    stylize: stylizeNoColor
+-  };
+-  // legacy...
+-  if (arguments.length >= 3) ctx.depth = arguments[2];
+-  if (arguments.length >= 4) ctx.colors = arguments[3];
+-  if (isBoolean(opts)) {
+-    // legacy...
+-    ctx.showHidden = opts;
+-  } else if (opts) {
+-    // got an "options" object
+-    exports._extend(ctx, opts);
+-  }
+-  // set default options
+-  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+-  if (isUndefined(ctx.depth)) ctx.depth = 2;
+-  if (isUndefined(ctx.colors)) ctx.colors = false;
+-  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+-  if (ctx.colors) ctx.stylize = stylizeWithColor;
+-  return formatValue(ctx, obj, ctx.depth);
+-}
+-exports.inspect = inspect;
+-
+-
+-// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+-inspect.colors = {
+-  '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]
+-};
+-
+-// Don't use 'blue' not visible on cmd.exe
+-inspect.styles = {
+-  'special': 'cyan',
+-  'number': 'yellow',
+-  'boolean': 'yellow',
+-  'undefined': 'grey',
+-  'null': 'bold',
+-  'string': 'green',
+-  'date': 'magenta',
+-  // "name": intentionally not styling
+-  'regexp': 'red'
+-};
+-
+-
+-function stylizeWithColor(str, styleType) {
+-  var style = inspect.styles[styleType];
+-
+-  if (style) {
+-    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+-           '\u001b[' + inspect.colors[style][1] + 'm';
+-  } else {
+-    return str;
+-  }
+-}
+-
+-
+-function stylizeNoColor(str, styleType) {
+-  return str;
+-}
+-
+-
+-function arrayToHash(array) {
+-  var hash = {};
+-
+-  array.forEach(function(val, idx) {
+-    hash[val] = true;
+-  });
+-
+-  return hash;
+-}
+-
+-
+-function formatValue(ctx, value, recurseTimes) {
+-  // Provide a hook for user-specified inspect functions.
+-  // Check that value is an object with an inspect function on it
+-  if (ctx.customInspect &&
+-      value &&
+-      isFunction(value.inspect) &&
+-      // Filter out the util module, it's inspect function is special
+-      value.inspect !== exports.inspect &&
+-      // Also filter out any prototype objects using the circular check.
+-      !(value.constructor && value.constructor.prototype === value)) {
+-    var ret = value.inspect(recurseTimes, ctx);
+-    if (!isString(ret)) {
+-      ret = formatValue(ctx, ret, recurseTimes);
+-    }
+-    return ret;
+-  }
+-
+-  // Primitive types cannot have properties
+-  var primitive = formatPrimitive(ctx, value);
+-  if (primitive) {
+-    return primitive;
+-  }
+-
+-  // Look up the keys of the object.
+-  var keys = Object.keys(value);
+-  var visibleKeys = arrayToHash(keys);
+-
+-  if (ctx.showHidden) {
+-    keys = Object.getOwnPropertyNames(value);
+-  }
+-
+-  // Some type of object without properties can be shortcutted.
+-  if (keys.length === 0) {
+-    if (isFunction(value)) {
+-      var name = value.name ? ': ' + value.name : '';
+-      return ctx.stylize('[Function' + name + ']', 'special');
+-    }
+-    if (isRegExp(value)) {
+-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+-    }
+-    if (isDate(value)) {
+-      return ctx.stylize(Date.prototype.toString.call(value), 'date');
+-    }
+-    if (isError(value)) {
+-      return formatError(value);
+-    }
+-  }
+-
+-  var base = '', array = false, braces = ['{', '}'];
+-
+-  // Make Array say that they are Array
+-  if (isArray(value)) {
+-    array = true;
+-    braces = ['[', ']'];
+-  }
+-
+-  // Make functions say that they are functions
+-  if (isFunction(value)) {
+-    var n = value.name ? ': ' + value.name : '';
+-    base = ' [Function' + n + ']';
+-  }
+-
+-  // Make RegExps say that they are RegExps
+-  if (isRegExp(value)) {
+-    base = ' ' + RegExp.prototype.toString.call(value);
+-  }
+-
+-  // Make dates with properties first say the date
+-  if (isDate(value)) {
+-    base = ' ' + Date.prototype.toUTCString.call(value);
+-  }
+-
+-  // Make error with message first say the error
+-  if (isError(value)) {
+-    base = ' ' + formatError(value);
+-  }
+-
+-  if (keys.length === 0 && (!array || value.length == 0)) {
+-    return braces[0] + base + braces[1];
+-  }
+-
+-  if (recurseTimes < 0) {
+-    if (isRegExp(value)) {
+-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+-    } else {
+-      return ctx.stylize('[Object]', 'special');
+-    }
+-  }
+-
+-  ctx.seen.push(value);
+-
+-  var output;
+-  if (array) {
+-    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+-  } else {
+-    output = keys.map(function(key) {
+-      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+-    });
+-  }
+-
+-  ctx.seen.pop();
+-
+-  return reduceToSingleString(output, base, braces);
+-}
+-
+-
+-function formatPrimitive(ctx, value) {
+-  if (isUndefined(value))
+-    return ctx.stylize('undefined', 'undefined');
+-  if (isString(value)) {
+-    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+-                                             .replace(/'/g, "\\'")
+-                                             .replace(/\\"/g, '"') + '\'';
+-    return ctx.stylize(simple, 'string');
+-  }
+-  if (isNumber(value)) {
+-    // Format -0 as '-0'. Strict equality won't distinguish 0 from -0,
+-    // so instead we use the fact that 1 / -0 < 0 whereas 1 / 0 > 0 .
+-    if (value === 0 && 1 / value < 0)
+-      return ctx.stylize('-0', 'number');
+-    return ctx.stylize('' + value, 'number');
+-  }
+-  if (isBoolean(value))
+-    return ctx.stylize('' + value, 'boolean');
+-  // For some reason typeof null is "object", so special case here.
+-  if (isNull(value))
+-    return ctx.stylize('null', 'null');
+-}
+-
+-
+-function formatError(value) {
+-  return '[' + Error.prototype.toString.call(value) + ']';
+-}
+-
+-
+-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+-  var output = [];
+-  for (var i = 0, l = value.length; i < l; ++i) {
+-    if (hasOwnProperty(value, String(i))) {
+-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+-          String(i), true));
+-    } else {
+-      output.push('');
+-    }
+-  }
+-  keys.forEach(function(key) {
+-    if (!key.match(/^\d+$/)) {
+-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+-          key, true));
+-    }
+-  });
+-  return output;
+-}
+-
+-
+-function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+-  var name, str, desc;
+-  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+-  if (desc.get) {
+-    if (desc.set) {
+-      str = ctx.stylize('[Getter/Setter]', 'special');
+-    } else {
+-      str = ctx.stylize('[Getter]', 'special');
+-    }
+-  } else {
+-    if (desc.set) {
+-      str = ctx.stylize('[Setter]', 'special');
+-    }
+-  }
+-  if (!hasOwnProperty(visibleKeys, key)) {
+-    name = '[' + key + ']';
+-  }
+-  if (!str) {
+-    if (ctx.seen.indexOf(desc.value) < 0) {
+-      if (isNull(recurseTimes)) {
+-        str = formatValue(ctx, desc.value, null);
+-      } else {
+-        str = formatValue(ctx, desc.value, recurseTimes - 1);
+-      }
+-      if (str.indexOf('\n') > -1) {
+-        if (array) {
+-          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 = ctx.stylize('[Circular]', 'special');
+-    }
+-  }
+-  if (isUndefined(name)) {
+-    if (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 = ctx.stylize(name, 'name');
+-    } else {
+-      name = name.replace(/'/g, "\\'")
+-                 .replace(/\\"/g, '"')
+-                 .replace(/(^"|"$)/g, "'");
+-      name = ctx.stylize(name, 'string');
+-    }
+-  }
+-
+-  return name + ': ' + str;
+-}
+-
+-
+-function reduceToSingleString(output, base, braces) {
+-  var numLinesEst = 0;
+-  var length = output.reduce(function(prev, cur) {
+-    numLinesEst++;
+-    if (cur.indexOf('\n') >= 0) numLinesEst++;
+-    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+-  }, 0);
+-
+-  if (length > 60) {
+-    return braces[0] +
+-           (base === '' ? '' : base + '\n ') +
+-           ' ' +
+-           output.join(',\n  ') +
+-           ' ' +
+-           braces[1];
+-  }
+-
+-  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+-}
+-
+-
+ // NOTE: These type checking functions intentionally don't use `instanceof`
+ // because it is fragile and can be easily faked with `Object.create()`.
+ function isArray(ar) {
+@@ -522,166 +98,10 @@ function isPrimitive(arg) {
+ exports.isPrimitive = isPrimitive;
+
+ function isBuffer(arg) {
+-  return arg instanceof Buffer;
++  return Buffer.isBuffer(arg);
+ }
+ exports.isBuffer = isBuffer;
+
+ function objectToString(o) {
+   return Object.prototype.toString.call(o);
+-}
+-
+-
+-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(' ');
+-}
+-
+-
+-// log is just a thin wrapper to console.log that prepends a timestamp
+-exports.log = function() {
+-  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
+-};
+-
+-
+-/**
+- * Inherit the prototype methods from one constructor into another.
+- *
+- * The Function.prototype.inherits from lang.js rewritten as a standalone
+- * function (not on Function.prototype). NOTE: If this file is to be loaded
+- * during bootstrapping this function needs to be rewritten using some native
+- * functions as prototype setup using normal JavaScript does not work as
+- * expected during bootstrapping (see mirror.js in r114903).
+- *
+- * @param {function} ctor Constructor function which needs to inherit the
+- *     prototype.
+- * @param {function} superCtor Constructor function to inherit prototype from.
+- */
+-exports.inherits = function(ctor, superCtor) {
+-  ctor.super_ = superCtor;
+-  ctor.prototype = Object.create(superCtor.prototype, {
+-    constructor: {
+-      value: ctor,
+-      enumerable: false,
+-      writable: true,
+-      configurable: true
+-    }
+-  });
+-};
+-
+-exports._extend = function(origin, add) {
+-  // Don't do anything if add isn't an object
+-  if (!add || !isObject(add)) return origin;
+-
+-  var keys = Object.keys(add);
+-  var i = keys.length;
+-  while (i--) {
+-    origin[keys[i]] = add[keys[i]];
+-  }
+-  return origin;
+-};
+-
+-function hasOwnProperty(obj, prop) {
+-  return Object.prototype.hasOwnProperty.call(obj, prop);
+-}
+-
+-
+-// Deprecated old stuff.
+-
+-exports.p = exports.deprecate(function() {
+-  for (var i = 0, len = arguments.length; i < len; ++i) {
+-    console.error(exports.inspect(arguments[i]));
+-  }
+-}, 'util.p: Use console.error() instead');
+-
+-
+-exports.exec = exports.deprecate(function() {
+-  return require('child_process').exec.apply(this, arguments);
+-}, 'util.exec is now called `child_process.exec`.');
+-
+-
+-exports.print = exports.deprecate(function() {
+-  for (var i = 0, len = arguments.length; i < len; ++i) {
+-    process.stdout.write(String(arguments[i]));
+-  }
+-}, 'util.print: Use console.log instead');
+-
+-
+-exports.puts = exports.deprecate(function() {
+-  for (var i = 0, len = arguments.length; i < len; ++i) {
+-    process.stdout.write(arguments[i] + '\n');
+-  }
+-}, 'util.puts: Use console.log instead');
+-
+-
+-exports.debug = exports.deprecate(function(x) {
+-  process.stderr.write('DEBUG: ' + x + '\n');
+-}, 'util.debug: Use console.error instead');
+-
+-
+-exports.error = exports.deprecate(function(x) {
+-  for (var i = 0, len = arguments.length; i < len; ++i) {
+-    process.stderr.write(arguments[i] + '\n');
+-  }
+-}, 'util.error: Use console.error instead');
+-
+-
+-exports.pump = exports.deprecate(function(readStream, writeStream, callback) {
+-  var callbackCalled = false;
+-
+-  function call(a, b, c) {
+-    if (callback && !callbackCalled) {
+-      callback(a, b, c);
+-      callbackCalled = true;
+-    }
+-  }
+-
+-  readStream.addListener('data', function(chunk) {
+-    if (writeStream.write(chunk) === false) readStream.pause();
+-  });
+-
+-  writeStream.addListener('drain', function() {
+-    readStream.resume();
+-  });
+-
+-  readStream.addListener('end', function() {
+-    writeStream.end();
+-  });
+-
+-  readStream.addListener('close', function() {
+-    call();
+-  });
+-
+-  readStream.addListener('error', function(err) {
+-    writeStream.end();
+-    call(err);
+-  });
+-
+-  writeStream.addListener('error', function(err) {
+-    readStream.destroy();
+-    call(err);
+-  });
+-}, 'util.pump(): Use readableStream.pipe() instead');
+-
+-
+-var uv;
+-exports._errnoException = function(err, syscall) {
+-  if (isUndefined(uv)) uv = process.binding('uv');
+-  var errname = uv.errname(err);
+-  var e = new Error(syscall + ' ' + errname);
+-  e.code = errname;
+-  e.errno = errname;
+-  e.syscall = syscall;
+-  return e;
+-};
++}
\ No newline at end of file
diff --git a/node_modules/core-util-is/lib/util.js b/node_modules/core-util-is/lib/util.js
new file mode 100644
index 0000000..ff4c851
--- /dev/null
+++ b/node_modules/core-util-is/lib/util.js
@@ -0,0 +1,107 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
+  }
+  return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = Buffer.isBuffer;
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
diff --git a/node_modules/core-util-is/package.json b/node_modules/core-util-is/package.json
new file mode 100644
index 0000000..770172f
--- /dev/null
+++ b/node_modules/core-util-is/package.json
@@ -0,0 +1,66 @@
+{
+  "_args": [
+    [
+      "core-util-is@1.0.2",
+      "/home/dstaesse/git/website"
+    ]
+  ],
+  "_development": true,
+  "_from": "core-util-is@1.0.2",
+  "_id": "core-util-is@1.0.2",
+  "_inBundle": false,
+  "_integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+  "_location": "/core-util-is",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "core-util-is@1.0.2",
+    "name": "core-util-is",
+    "escapedName": "core-util-is",
+    "rawSpec": "1.0.2",
+    "saveSpec": null,
+    "fetchSpec": "1.0.2"
+  },
+  "_requiredBy": [
+    "/readable-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+  "_spec": "1.0.2",
+  "_where": "/home/dstaesse/git/website",
+  "author": {
+    "name": "Isaac Z. Schlueter",
+    "email": "i@izs.me",
+    "url": "http://blog.izs.me/"
+  },
+  "bugs": {
+    "url": "https://github.com/isaacs/core-util-is/issues"
+  },
+  "description": "The `util.is*` functions introduced in Node v0.12.",
+  "devDependencies": {
+    "tap": "^2.3.0"
+  },
+  "homepage": "https://github.com/isaacs/core-util-is#readme",
+  "keywords": [
+    "util",
+    "isBuffer",
+    "isArray",
+    "isNumber",
+    "isString",
+    "isRegExp",
+    "isThis",
+    "isThat",
+    "polyfill"
+  ],
+  "license": "MIT",
+  "main": "lib/util.js",
+  "name": "core-util-is",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/core-util-is.git"
+  },
+  "scripts": {
+    "test": "tap test.js"
+  },
+  "version": "1.0.2"
+}
diff --git a/node_modules/core-util-is/test.js b/node_modules/core-util-is/test.js
new file mode 100644
index 0000000..1a490c6
--- /dev/null
+++ b/node_modules/core-util-is/test.js
@@ -0,0 +1,68 @@
+var assert = require('tap');
+
+var t = require('./lib/util');
+
+assert.equal(t.isArray([]), true);
+assert.equal(t.isArray({}), false);
+
+assert.equal(t.isBoolean(null), false);
+assert.equal(t.isBoolean(true), true);
+assert.equal(t.isBoolean(false), true);
+
+assert.equal(t.isNull(null), true);
+assert.equal(t.isNull(undefined), false);
+assert.equal(t.isNull(false), false);
+assert.equal(t.isNull(), false);
+
+assert.equal(t.isNullOrUndefined(null), true);
+assert.equal(t.isNullOrUndefined(undefined), true);
+assert.equal(t.isNullOrUndefined(false), false);
+assert.equal(t.isNullOrUndefined(), true);
+
+assert.equal(t.isNumber(null), false);
+assert.equal(t.isNumber('1'), false);
+assert.equal(t.isNumber(1), true);
+
+assert.equal(t.isString(null), false);
+assert.equal(t.isString('1'), true);
+assert.equal(t.isString(1), false);
+
+assert.equal(t.isSymbol(null), false);
+assert.equal(t.isSymbol('1'), false);
+assert.equal(t.isSymbol(1), false);
+assert.equal(t.isSymbol(Symbol()), true);
+
+assert.equal(t.isUndefined(null), false);
+assert.equal(t.isUndefined(undefined), true);
+assert.equal(t.isUndefined(false), false);
+assert.equal(t.isUndefined(), true);
+
+assert.equal(t.isRegExp(null), false);
+assert.equal(t.isRegExp('1'), false);
+assert.equal(t.isRegExp(new RegExp()), true);
+
+assert.equal(t.isObject({}), true);
+assert.equal(t.isObject([]), true);
+assert.equal(t.isObject(new RegExp()), true);
+assert.equal(t.isObject(new Date()), true);
+
+assert.equal(t.isDate(null), false);
+assert.equal(t.isDate('1'), false);
+assert.equal(t.isDate(new Date()), true);
+
+assert.equal(t.isError(null), false);
+assert.equal(t.isError({ err: true }), false);
+assert.equal(t.isError(new Error()), true);
+
+assert.equal(t.isFunction(null), false);
+assert.equal(t.isFunction({ }), false);
+assert.equal(t.isFunction(function() {}), true);
+
+assert.equal(t.isPrimitive(null), true);
+assert.equal(t.isPrimitive(''), true);
+assert.equal(t.isPrimitive(0), true);
+assert.equal(t.isPrimitive(new Date()), false);
+
+assert.equal(t.isBuffer(null), false);
+assert.equal(t.isBuffer({}), false);
+assert.equal(t.isBuffer(new Buffer(0)), true);