* DND now should work reasonable (still not finished DND on icons)
* Added menus (icon specific, desktop)
* Icon renaming works too
* Some code to change icons fonts (unfinished)
* Desktop main instance will be now first created and then call rest of
init data. This will allow init data to re-use desktop instance and peek
it's own data (area() for example). Previously, calling such functions would
crash app since constructor didn't finished with creation of desktop instance.
