What's New:
- New SDL2 library requirement: SDL2_Mixer libraries
- New midi subfolder added with GPL SR2 soundfont: TimGM6mb
- Clear Game Controller queue of DEVICEADDED on load.
- -romdir arg for alternate path definition of roms folder.
- -nomanymouse arg for disabling ManyMouse loading.
- Fix 'relative' co-ordinates reported by ManyMouse subsystem.
- Lower video width loading restriction for better portrait game support.
- Isolate Sinden border drawing Rect from the YUV window - video scaling is now isolated.
- Alter Sinden border drawing priority, now layers over a main bezel.
- Added MP3 and MIDI music support to Singe API calls.
- Fixed a heap overflow in GPWorld sprite drawing.
- Added JSON support for LUA (CJSON)
- Custom MIDI soundfont support available via sub-folder.
- Remove 'register' keyword deprecation warnings.
- Address certain libmpeg2 build warnings on Mac.
- Remove outstanding sprintf's.
- Update and tidy documentation.