GUAC-919: Rename LoginRESTService to TokenRESTService and provide logout semantics. Move Angular auth stuff to own module. Actually logout user.

guacamole/src/main/webapp/app/index/indexModule.js

@@ -23,4 +23,4 @@
 /**
  * The module for the root of the application.
  */
-angular.module('index', ['ngRoute', 'pascalprecht.translate', 'home', 'manage', 'login', 'client']);
+angular.module('index', ['ngRoute', 'pascalprecht.translate', 'auth', 'home', 'manage', 'login', 'client']);