Large refactoring of the pause and boot screens in Stage and various other small fixes
New FXManager system and Camera FX now in place.
Added Camera Mirror FX and test case.
Large Tilemap collision overhaul. Proper callback support, optimised collision checks and lots more.
Lots of new tile map commands and tests.
Updated readme
Removed un-needed file and added SoundManager fix.
Updated readme for official release.