feat(rc5): update to angular rc.5

- NgaModule - module wrapper for all ng2-admin custom features
- Ng Module per page
- async components load
- menu moved (again) to a separate file (as now each module has its own route file)
- no need to import Ba* directives into the pages which have NgaModule in the import statement

src/app/theme/components/baPageTop/baPageTop.component.ts

@@ -1,6 +1,6 @@
 import {Component, ViewEncapsulation} from '@angular/core';
 
-import {AppState} from '../../../app.state';
+import {GlobalState} from '../../../global.state';
 import {BaProfilePicturePipe} from '../../pipes';
 import {BaMsgCenter} from '../../components/baMsgCenter';
 import {BaScrollPosition} from '../../directives';
@@ -18,7 +18,7 @@ export class BaPageTop {
   public isScrolled:boolean = false;
   public isMenuCollapsed:boolean = false;
 
-  constructor(private _state:AppState) {
+  constructor(private _state:GlobalState) {
     this._state.subscribe('menu.isCollapsed', (isCollapsed) => {
       this.isMenuCollapsed = isCollapsed;
     });