Cleaned up editor.update(). Moved all the clicking into mousepressed and mousereleased. Moving objects up and down in layers should now work correctly.
Added new cursor image for filling (press ctrl in pen mode to see)
Fixed erasing of a single tile.
Fixed pen: fast drawing no longer leaves holes.
Edited fill image. Incresed maximum number of tiles to fill.
Fixed some transition placing.
Added foreground objects.