feat(Ion): Base component class

ionic/components/tabs/tab.js

@@ -38,7 +38,7 @@ export class Tab extends ViewController {
     // A Tab is both a container of many views, and is a view itself.
     // A Tab is one ViewItem within it's parent Tabs (which extends ViewController)
     // A Tab is a ViewController for its child ViewItems
-    super(tabs, injector);
+    super(tabs, injector, elementRef);
     this.tabs = tabs;
 
     this.childNavbar(true);

ionic/components/tabs/tabs.js

@@ -2,7 +2,7 @@ import {Optional} from 'angular2/src/di/annotations_impl'
 import {Component, onInit} from 'angular2/src/core/annotations_impl/annotations';
 import {View} from 'angular2/src/core/annotations_impl/view';
 import {Injector} from 'angular2/di';
-import {NgFor} from 'angular2/angular2';
+import {NgFor, ElementRef} from 'angular2/angular2';
 
 import {ViewController} from '../view/view-controller';
 import {ViewItem} from '../view/view-item';
@@ -43,9 +43,10 @@ export class Tabs extends ViewController {
   constructor(
     @Optional() parentViewCtrl: ViewController,
     @Optional() viewItem: ViewItem,
-    injector: Injector
+    injector: Injector,
+    elementRef: ElementRef
   ) {
-    super(parentViewCtrl, injector);
+    super(parentViewCtrl, injector, elementRef);
 
     // Tabs may also be an actual ViewItem which was navigated to
     // if Tabs is static and not navigated to within a ViewController