This is major change.
The sprites are no longer controls. They are basic lean(er) classes which have Draw() methods called by the CustomControlMap class which contains them.
Additionally, there is a Camera class that takes care of a lot of stuff that the sprite and map were doing before. This helped the code look a lot more sensible now.

There are still some gotchas I have not fixed, but wanted to just git er dun so out it went.
(the jump when you rotate past the 180 degree point, and the translation scaling)

I know where to look in the code, just too tired to do it right now.

Also this changes the XML format slightly. You can probably figure it out from looking at the save game files, but if not wait a few days and I will update the docs.