v0.93c

Incremental update, mainly consisting of GUI overhaul work. Most
editlevel features are now working with the new gui system (Delete and
edit of level objects is NOT working)

With this update comes the removal of EditLevel as a separate project,
The level editor can be accessed via the return key in game. To exit the
level editor, press Esc twice. This will reload 'objects1.ini' with any
changes made. I've also further organized the gui related code in
subdirectories.

Moved clear() and load() from EditLevel to Level parent class.

A lot of general bugfixes in update. See Camera, LevelEdit