fix(docs): Fix comments content and style

Changed some bad comments referencing the Articles module in other modules.
Typo fixed in xxx.client.modules.js files ("Application" => "Applicaion")
Full stop character removed at the end of line comments

modules/users/server/controllers/admin.server.controller.js

@@ -1,7 +1,7 @@
 'use strict';
 
 /**
- * Module dependencies.
+ * Module dependencies
  */
 var path = require('path'),
   mongoose = require('mongoose'),