refactor(router): rename "as" to "name" in RouteConfig

BREAKING CHANGE:

This is a rename to make routing concepts easier to understand.

Before:

```
@RouteConfig([
  { path: '/', component: MyCmp, as: 'Home' }
])
```

After:

```
@RouteConfig([
  { path: '/', component: MyCmp, name: 'Home' }
])
```

Closes #4622

Closes #4896

modules/angular2/examples/router/ts/can_activate/can_activate_example.ts

@@ -43,8 +43,8 @@ class HomeCmp {
   directives: [ROUTER_DIRECTIVES]
 })
 @RouteConfig([
-  {path: '/user-settings/:id', component: ControlPanelCmp, as: 'ControlPanelCmp'},
-  {path: '/', component: HomeCmp, as: 'HomeCmp'}
+  {path: '/user-settings/:id', component: ControlPanelCmp, name: 'ControlPanelCmp'},
+  {path: '/', component: HomeCmp, name: 'HomeCmp'}
 ])
 class AppCmp {
 }

modules/angular2/examples/router/ts/can_deactivate/can_deactivate_example.ts

@@ -53,8 +53,8 @@ class NoteIndexCmp {
   directives: [ROUTER_DIRECTIVES]
 })
 @RouteConfig([
-  {path: '/note/:id', component: NoteCmp, as: 'NoteCmp'},
-  {path: '/', component: NoteIndexCmp, as: 'NoteIndexCmp'}
+  {path: '/note/:id', component: NoteCmp, name: 'NoteCmp'},
+  {path: '/', component: NoteIndexCmp, name: 'NoteIndexCmp'}
 ])
 class AppCmp {
 }

modules/angular2/examples/router/ts/on_activate/on_activate_example.ts

@@ -33,8 +33,8 @@ class MyCmp implements OnActivate {
   directives: [ROUTER_DIRECTIVES]
 })
 @RouteConfig([
-  {path: '/', component: MyCmp, as: 'HomeCmp'},
-  {path: '/:param', component: MyCmp, as: 'ParamCmp'}
+  {path: '/', component: MyCmp, name: 'HomeCmp'},
+  {path: '/:param', component: MyCmp, name: 'ParamCmp'}
 ])
 class AppCmp {
 }

modules/angular2/examples/router/ts/on_deactivate/on_deactivate_example.ts

@@ -46,8 +46,8 @@ class MyCmp implements OnDeactivate {
   directives: [ROUTER_DIRECTIVES, NgFor]
 })
 @RouteConfig([
-  {path: '/', component: MyCmp, as: 'HomeCmp'},
-  {path: '/:param', component: MyCmp, as: 'ParamCmp'}
+  {path: '/', component: MyCmp, name: 'HomeCmp'},
+  {path: '/:param', component: MyCmp, name: 'ParamCmp'}
 ])
 class AppCmp {
   constructor(public logService: LogService) {}

modules/angular2/examples/router/ts/reuse/reuse_example.ts

@@ -44,8 +44,8 @@ class MyCmp implements CanReuse,
   directives: [ROUTER_DIRECTIVES]
 })
 @RouteConfig([
-  {path: '/', component: MyCmp, as: 'HomeCmp'},
-  {path: '/:name', component: MyCmp, as: 'HomeCmp'}
+  {path: '/', component: MyCmp, name: 'HomeCmp'},
+  {path: '/:name', component: MyCmp, name: 'HomeCmp'}
 ])
 class AppCmp {
 }