AngularJS: Remove unnecessary ng-controller

Fix #898

The router already takes care of initializing the controller, doing it again in
the markup causes the initialization to happen twice. Thanks @ruffle1986 for
reporting.

architecture-examples/angularjs/index.html

@@ -10,7 +10,7 @@
 		<ng-view />
 
 		<script type="text/ng-template" id="todomvc-index.html">
-			<section id="todoapp" ng-controller="TodoCtrl">
+			<section id="todoapp">
 				<header id="header">
 					<h1>todos</h1>
 					<form id="todo-form" ng-submit="addTodo()">