GUAC-1120: Move notifications into own service.

guacamole/src/main/webapp/app/client/clientModule.js

@@ -23,4 +23,13 @@
 /**
  * The module for code used to connect to a connection or balancing group.
  */
-angular.module('client', ['auth', 'element', 'history', 'osk', 'rest', 'textInput', 'touch']);
+angular.module('client', [
+    'auth',
+    'element',
+    'history',
+    'notification',
+    'osk',
+    'rest',
+    'textInput',
+    'touch'
+]);