diff --git a/node_modules/path-to-regexp/index.js b/node_modules/path-to-regexp/index.js
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+++ b/node_modules/path-to-regexp/index.js
@@ -0,0 +1,426 @@
+var isarray = require('isarray')
+
+/**
+ * Expose `pathToRegexp`.
+ */
+module.exports = pathToRegexp
+module.exports.parse = parse
+module.exports.compile = compile
+module.exports.tokensToFunction = tokensToFunction
+module.exports.tokensToRegExp = tokensToRegExp
+
+/**
+ * The main path matching regexp utility.
+ *
+ * @type {RegExp}
+ */
+var PATH_REGEXP = new RegExp([
+  // Match escaped characters that would otherwise appear in future matches.
+  // This allows the user to escape special characters that won't transform.
+  '(\\\\.)',
+  // Match Express-style parameters and un-named parameters with a prefix
+  // and optional suffixes. Matches appear as:
+  //
+  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
+  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
+  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
+  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
+].join('|'), 'g')
+
+/**
+ * Parse a string for the raw tokens.
+ *
+ * @param  {string}  str
+ * @param  {Object=} options
+ * @return {!Array}
+ */
+function parse (str, options) {
+  var tokens = []
+  var key = 0
+  var index = 0
+  var path = ''
+  var defaultDelimiter = options && options.delimiter || '/'
+  var res
+
+  while ((res = PATH_REGEXP.exec(str)) != null) {
+    var m = res[0]
+    var escaped = res[1]
+    var offset = res.index
+    path += str.slice(index, offset)
+    index = offset + m.length
+
+    // Ignore already escaped sequences.
+    if (escaped) {
+      path += escaped[1]
+      continue
+    }
+
+    var next = str[index]
+    var prefix = res[2]
+    var name = res[3]
+    var capture = res[4]
+    var group = res[5]
+    var modifier = res[6]
+    var asterisk = res[7]
+
+    // Push the current path onto the tokens.
+    if (path) {
+      tokens.push(path)
+      path = ''
+    }
+
+    var partial = prefix != null && next != null && next !== prefix
+    var repeat = modifier === '+' || modifier === '*'
+    var optional = modifier === '?' || modifier === '*'
+    var delimiter = res[2] || defaultDelimiter
+    var pattern = capture || group
+
+    tokens.push({
+      name: name || key++,
+      prefix: prefix || '',
+      delimiter: delimiter,
+      optional: optional,
+      repeat: repeat,
+      partial: partial,
+      asterisk: !!asterisk,
+      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
+    })
+  }
+
+  // Match any characters still remaining.
+  if (index < str.length) {
+    path += str.substr(index)
+  }
+
+  // If the path exists, push it onto the end.
+  if (path) {
+    tokens.push(path)
+  }
+
+  return tokens
+}
+
+/**
+ * Compile a string to a template function for the path.
+ *
+ * @param  {string}             str
+ * @param  {Object=}            options
+ * @return {!function(Object=, Object=)}
+ */
+function compile (str, options) {
+  return tokensToFunction(parse(str, options), options)
+}
+
+/**
+ * Prettier encoding of URI path segments.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeURIComponentPretty (str) {
+  return encodeURI(str).replace(/[\/?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
+ *
+ * @param  {string}
+ * @return {string}
+ */
+function encodeAsterisk (str) {
+  return encodeURI(str).replace(/[?#]/g, function (c) {
+    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
+  })
+}
+
+/**
+ * Expose a method for transforming tokens into the path function.
+ */
+function tokensToFunction (tokens, options) {
+  // Compile all the tokens into regexps.
+  var matches = new Array(tokens.length)
+
+  // Compile all the patterns before compilation.
+  for (var i = 0; i < tokens.length; i++) {
+    if (typeof tokens[i] === 'object') {
+      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$', flags(options))
+    }
+  }
+
+  return function (obj, opts) {
+    var path = ''
+    var data = obj || {}
+    var options = opts || {}
+    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent
+
+    for (var i = 0; i < tokens.length; i++) {
+      var token = tokens[i]
+
+      if (typeof token === 'string') {
+        path += token
+
+        continue
+      }
+
+      var value = data[token.name]
+      var segment
+
+      if (value == null) {
+        if (token.optional) {
+          // Prepend partial segment prefixes.
+          if (token.partial) {
+            path += token.prefix
+          }
+
+          continue
+        } else {
+          throw new TypeError('Expected "' + token.name + '" to be defined')
+        }
+      }
+
+      if (isarray(value)) {
+        if (!token.repeat) {
+          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
+        }
+
+        if (value.length === 0) {
+          if (token.optional) {
+            continue
+          } else {
+            throw new TypeError('Expected "' + token.name + '" to not be empty')
+          }
+        }
+
+        for (var j = 0; j < value.length; j++) {
+          segment = encode(value[j])
+
+          if (!matches[i].test(segment)) {
+            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
+          }
+
+          path += (j === 0 ? token.prefix : token.delimiter) + segment
+        }
+
+        continue
+      }
+
+      segment = token.asterisk ? encodeAsterisk(value) : encode(value)
+
+      if (!matches[i].test(segment)) {
+        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
+      }
+
+      path += token.prefix + segment
+    }
+
+    return path
+  }
+}
+
+/**
+ * Escape a regular expression string.
+ *
+ * @param  {string} str
+ * @return {string}
+ */
+function escapeString (str) {
+  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
+}
+
+/**
+ * Escape the capturing group by escaping special characters and meaning.
+ *
+ * @param  {string} group
+ * @return {string}
+ */
+function escapeGroup (group) {
+  return group.replace(/([=!:$\/()])/g, '\\$1')
+}
+
+/**
+ * Attach the keys as a property of the regexp.
+ *
+ * @param  {!RegExp} re
+ * @param  {Array}   keys
+ * @return {!RegExp}
+ */
+function attachKeys (re, keys) {
+  re.keys = keys
+  return re
+}
+
+/**
+ * Get the flags for a regexp from the options.
+ *
+ * @param  {Object} options
+ * @return {string}
+ */
+function flags (options) {
+  return options && options.sensitive ? '' : 'i'
+}
+
+/**
+ * Pull out keys from a regexp.
+ *
+ * @param  {!RegExp} path
+ * @param  {!Array}  keys
+ * @return {!RegExp}
+ */
+function regexpToRegexp (path, keys) {
+  // Use a negative lookahead to match only capturing groups.
+  var groups = path.source.match(/\((?!\?)/g)
+
+  if (groups) {
+    for (var i = 0; i < groups.length; i++) {
+      keys.push({
+        name: i,
+        prefix: null,
+        delimiter: null,
+        optional: false,
+        repeat: false,
+        partial: false,
+        asterisk: false,
+        pattern: null
+      })
+    }
+  }
+
+  return attachKeys(path, keys)
+}
+
+/**
+ * Transform an array into a regexp.
+ *
+ * @param  {!Array}  path
+ * @param  {Array}   keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function arrayToRegexp (path, keys, options) {
+  var parts = []
+
+  for (var i = 0; i < path.length; i++) {
+    parts.push(pathToRegexp(path[i], keys, options).source)
+  }
+
+  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options))
+
+  return attachKeys(regexp, keys)
+}
+
+/**
+ * Create a path regexp from string input.
+ *
+ * @param  {string}  path
+ * @param  {!Array}  keys
+ * @param  {!Object} options
+ * @return {!RegExp}
+ */
+function stringToRegexp (path, keys, options) {
+  return tokensToRegExp(parse(path, options), keys, options)
+}
+
+/**
+ * Expose a function for taking tokens and returning a RegExp.
+ *
+ * @param  {!Array}          tokens
+ * @param  {(Array|Object)=} keys
+ * @param  {Object=}         options
+ * @return {!RegExp}
+ */
+function tokensToRegExp (tokens, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options)
+    keys = []
+  }
+
+  options = options || {}
+
+  var strict = options.strict
+  var end = options.end !== false
+  var route = ''
+
+  // Iterate over the tokens and create our regexp string.
+  for (var i = 0; i < tokens.length; i++) {
+    var token = tokens[i]
+
+    if (typeof token === 'string') {
+      route += escapeString(token)
+    } else {
+      var prefix = escapeString(token.prefix)
+      var capture = '(?:' + token.pattern + ')'
+
+      keys.push(token)
+
+      if (token.repeat) {
+        capture += '(?:' + prefix + capture + ')*'
+      }
+
+      if (token.optional) {
+        if (!token.partial) {
+          capture = '(?:' + prefix + '(' + capture + '))?'
+        } else {
+          capture = prefix + '(' + capture + ')?'
+        }
+      } else {
+        capture = prefix + '(' + capture + ')'
+      }
+
+      route += capture
+    }
+  }
+
+  var delimiter = escapeString(options.delimiter || '/')
+  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter
+
+  // In non-strict mode we allow a slash at the end of match. If the path to
+  // match already ends with a slash, we remove it for consistency. The slash
+  // is valid at the end of a path match, not in the middle. This is important
+  // in non-ending mode, where "/test/" shouldn't match "/test//route".
+  if (!strict) {
+    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?'
+  }
+
+  if (end) {
+    route += '$'
+  } else {
+    // In non-ending mode, we need the capturing groups to match as much as
+    // possible by using a positive lookahead to the end or next path segment.
+    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)'
+  }
+
+  return attachKeys(new RegExp('^' + route, flags(options)), keys)
+}
+
+/**
+ * Normalize the given path string, returning a regular expression.
+ *
+ * An empty array can be passed in for the keys, which will hold the
+ * placeholder key descriptions. For example, using `/user/:id`, `keys` will
+ * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
+ *
+ * @param  {(string|RegExp|Array)} path
+ * @param  {(Array|Object)=}       keys
+ * @param  {Object=}               options
+ * @return {!RegExp}
+ */
+function pathToRegexp (path, keys, options) {
+  if (!isarray(keys)) {
+    options = /** @type {!Object} */ (keys || options)
+    keys = []
+  }
+
+  options = options || {}
+
+  if (path instanceof RegExp) {
+    return regexpToRegexp(path, /** @type {!Array} */ (keys))
+  }
+
+  if (isarray(path)) {
+    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
+  }
+
+  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
+}