feat(scope): new and improved scope implementation

- Speed improvements (about 4x on flush phase)
- Memory improvements (uses no function closures)
- Break $eval into $apply, $dispatch, $flush
- Introduced $watch and $observe

Breaks angular.equals() use === instead of ==
Breaks angular.scope() does not take parent as first argument
Breaks scope.$watch() takes scope as first argument
Breaks scope.$set(), scope.$get are removed
Breaks scope.$config is removed
Breaks $route.onChange callback has not "this" bounded

1 files changed, 3 insertions, 8 deletions

diff --git a/src/service/defer.js b/src/service/defer.js
index 551e8bc9..0a69912c 100644
--- a/src/service/defer.js
+++ b/src/service/defer.js
@@ -18,16 +18,11 @@
  * @param {function()} fn A function, who's execution should be deferred.
  * @param {number=} [delay=0] of milliseconds to defer the function execution.
  */
-angularServiceInject('$defer', function($browser, $exceptionHandler, $updateView) {
+angularServiceInject('$defer', function($browser) {
+  var scope = this;
   return function(fn, delay) {
     $browser.defer(function() {
-      try {
-        fn();
-      } catch(e) {
-        $exceptionHandler(e);
-      } finally {
-        $updateView();
-      }
+      scope.$apply(fn);
     }, delay);
   };
 }, ['$browser', '$exceptionHandler', '$updateView']);