title: Multiple Contrllers in UI-router
body: <p>I have a application which uses angularjs and I use ui-rourer for routing</p>
  
  <p>I need to have multiple controller for a single page, Is it possible ?</p>
  
  <p>This  is my route.js code </p>
  
  <pre><code>  .state(ROUTE.appGroup, {
                      abstract: true,
                      views: {
                          'content@': {
                              templateUrl: GLOBAL.viewPath + '/index.html',
                              controller: 'appCtrl'
                          }
                      }
                  })
  </code></pre>
  
  <p>I need something like </p>
  
  <pre><code>  .state(ROUTE.appGroup, {
                      abstract: true,
                      views: {
                          'content@': {
                              templateUrl: GLOBAL.viewPath + '/index.html',
                              controller: 'appCtrl,mainCtrl'
                          }
                      }
                  })
  </code></pre>
  
  <p>Can anyone help?</p>