feat(bootstrap): remove the need for explicit reflection setup in bootstrap code

BREAKING CHANGES:

Dart applications and TypeScript applications meant to transpile to Dart must now
import `package:angular2/bootstrap.dart` instead of `package:angular2/angular2.dart`
in their bootstrap code. `package:angular2/angular2.dart` no longer export the
bootstrap function. The transformer rewrites imports of `bootstrap.dart` and calls
to `bootstrap` to `bootstrap_static.dart` and `bootstrapStatic` respectively.

modules/benchmarks/src/static_tree/tree_benchmark.ts

@@ -1,4 +1,11 @@
-import {bootstrap, Compiler, Component, Directive, View, ViewContainerRef} from 'angular2/angular2';
+import {
+  bootstrap,
+  Compiler,
+  Component,
+  Directive,
+  View,
+  ViewContainerRef
+} from 'angular2/bootstrap';
 
 import {LifeCycle} from 'angular2/src/core/life_cycle/life_cycle';
 import {reflector} from 'angular2/src/reflection/reflection';