demo(collectionRepeat): update ng-app name

Author: ajoslin

demos/directive/collectionRepeat/contacts/contacts.html

@@ -3,7 +3,7 @@
 component: collectionRepeat
 ---
 
-<div ng-controller="MainCtrl" ng-app="contactsApp">
+<div ng-controller="MainCtrl">
   <ion-header-bar class="bar-positive">
     <h1 class="title">3000 Contacts B</h1>
     <button class="button clear" ng-click="data.search = ''">Clear</button>

demos/directive/collectionRepeat/contacts/contacts.js

@@ -3,7 +3,7 @@ name: contacts
 component: collectionRepeat
 ---
 
-angular.module('contactsApp', ['ionic'])
+angular.module('contacts', ['ionic'])
 
 .filter('ionLetterDividers', function($parse) {
   // Reuse letter objects for angular digest, so it can assign an id