fix($urlMatcherFactory): Fix to make the YUI Javascript compressor work

The current implementation of the yuicompressor throws an error when minifying the defaultTypes of the urlMatcherFactory because int is an invalid property id.
Changed the property names to string values.

src/urlMatcherFactory.js

@@ -599,27 +599,27 @@ function $UrlMatcherFactory() {
   function valFromString(val) { return val != null ? val.toString().replace(/~2F/g, "/").replace(/~~/g, "~") : val; }
 
   var $types = {}, enqueue = true, typeQueue = [], injector, defaultTypes = {
-    string: {
+    "string": {
       encode: valToString,
       decode: valFromString,
       // TODO: in 1.0, make string .is() return false if value is undefined/null by default.
       // In 0.2.x, string params are optional by default for backwards compat
       is: function(val) { return val == null || !isDefined(val) || typeof val === "string"; },
       pattern: /[^/]*/
     },
-    int: {
+    "int": {
       encode: valToString,
       decode: function(val) { return parseInt(val, 10); },
       is: function(val) { return isDefined(val) && this.decode(val.toString()) === val; },
       pattern: /\d+/
     },
-    bool: {
+    "bool": {
       encode: function(val) { return val ? 1 : 0; },
       decode: function(val) { return parseInt(val, 10) !== 0; },
       is: function(val) { return val === true || val === false; },
       pattern: /0|1/
     },
-    date: {
+    "date": {
       encode: function (val) {
         if (!this.is(val))
           return undefined;
@@ -638,14 +638,14 @@ function $UrlMatcherFactory() {
       pattern: /[0-9]{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[1-2][0-9]|3[0-1])/,
       capture: /([0-9]{4})-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])/
     },
-    json: {
+    "json": {
       encode: angular.toJson,
       decode: angular.fromJson,
       is: angular.isObject,
       equals: angular.equals,
       pattern: /[^/]*/
     },
-    any: { // does not encode/decode
+    "any": { // does not encode/decode
       encode: angular.identity,
       decode: angular.identity,
       equals: angular.equals,