cherry-pick: Added ability to pass data along with login confirmation

This is quite useful if you want to listen out for login confirmation
and have access to *who* logged in (for presentation purposes)

Conflicts:
	src/angular-http-auth.js

Author: julianjelfs

src/http-auth-interceptor.js

@@ -12,8 +12,8 @@
 
   .factory('authService', ['$rootScope','httpBuffer', function($rootScope, httpBuffer) {
     return {
-      loginConfirmed: function() {
-        $rootScope.$broadcast('event:auth-loginConfirmed');
+      loginConfirmed: function(data) {
+        $rootScope.$broadcast('event:auth-loginConfirmed', data);
         httpBuffer.retryAll();
       }
     };