-ability to edit multiple scenes at the same time
-resource internal IDs are now persistent, this makes multiple scene
editing possible but maaaaay result in file corruption bugs (tested and
could not find anything but possibility exists because core code
changed, report immediately if you find this).
-properly save settings, layout, etc when edited
-script editing is independent from scene editing now
-show a yellow box when a script belongs to the scene
-ItemList control for easier lists/thumbnails
-New file dialog, with support for thumbnails, favorites, recent places,
etc
-Moved .fscache out of the project, no more bugs due to committed/pulled
.fscache!
-Dir dialog now sorts directories
