chore(test): remove deprecated angular2/test and angular2/test_lib

These have been deprecated for a while. Instead of angular2/test, use
angular2/testing. Instead of angular2/test_lib, use angular2_testing_internal.

modules/angular2/test/core/zone/ng_zone_DEPRECATED_spec.ts

@@ -14,7 +14,7 @@ import {
   Log,
   isInInnerZone,
   browserDetection
-} from 'angular2/test_lib';
+} from 'angular2/testing_internal';
 
 import {PromiseCompleter, PromiseWrapper, TimerWrapper} from 'angular2/src/facade/async';
 import {BaseException} from 'angular2/src/facade/exceptions';