feat(web-workers) Add WebWorker Renderer

Allows angular apps to be rendered from the webworker!
Closes #3052, #3053, and #3097

modules/angular2/src/facade/lang.dart

@@ -39,6 +39,19 @@ bool isDate(obj) => obj is DateTime;
 
 String stringify(obj) => obj.toString();
 
+int serializeEnum(val) {
+  return val.index;
+}
+
+/**
+ * Deserializes an enum
+ * val should be the indexed value of the enum (sa returned from @Link{serializeEnum})
+ * values should be a map from indexes to values for the enum that you want to deserialize.
+ */
+dynamic deserializeEnum(int val, Map<int, dynamic> values) {
+  return values[val];
+}
+
 class StringWrapper {
   static String fromCharCode(int code) {
     return new String.fromCharCode(code);

modules/angular2/src/facade/lang.ts

@@ -130,6 +130,17 @@ export function stringify(token): string {
   return (newLineIndex === -1) ? res : res.substring(0, newLineIndex);
 }
 
+// serialize / deserialize enum exist only for consistency with dart API
+// enums in typescript don't need to be serialized
+
+export function serializeEnum(val): int {
+  return val;
+}
+
+export function deserializeEnum(val, values: Map<int, any>): any {
+  return val;
+}
+
 export class StringWrapper {
   static fromCharCode(code: int): string { return String.fromCharCode(code); }