Re format all methods and define the final documentation.
1. Replaced the icon set.
2. Add css for each icon.
3. Re writter the build user info system method
-  The user info is now a Ext.button.Button component with a Ext.menu.Menu as dropdown.
10. Add icons to all toolbar buttons.
11. Get the user info menu from the system model.
10. Create the logoff action.
11. Open the global navigation on enter key, so its possible to only use the keyboard.