feat: camelCase Angular (kebab-case removal)

BREAKING CHANGE:

Angular is now fully camel case.

Before:

    <p *ng-if="cond">
    <my-cmp [my-prop]="exp">
    <my-cmp (my-event)="action()">
    <my-cmp [(my-prop)]="prop">
    <input #my-input>
    <template ng-for #my-item [ng-for-of]=items #my-index="index">

After

    <p *ngIf="cond">
    <my-cmp [myProp]="exp">
    <my-cmp (myEvent)="action()">
    <my-cmp [(myProp)]="prop">
    <input #myInput>`,
    <template ngFor="#my-item" [ngForOf]=items #myIndex="index">

The full details are found in [angular2/docs/migration/kebab-case.md](https://github.com/angular/angular/blob/master/modules/angular2/docs/migration/kebab-case.md)

modules_dart/angular2_testing/test/angular2_testing_test.dart

@@ -29,7 +29,7 @@ class TestService {
 class MyToken {}
 
 const TEMPLATE =
-    '<div><copy-me template=\'ng-for #item of items\'>{{item.toString()}};</copy-me></div>';
+    '<div><copy-me template=\'ngFor #item of items\'>{{item.toString()}};</copy-me></div>';
 
 void main() {
   initAngularTests();