Genesis Plus 1.2.9

Genesis Plus features very accurate emulation of the original Sega Genesis, even to the point that some software which has problems on the real hardware (Sonic Crackers, for example) exhibits the same behaviour under emulation.
Genesis Plus even has support for six-button game pads.
Enhancements:
- Fixed several endian bugs; of particular note, screenshots and audio recordings now work correctly on Intel Macs.
- File extensions are now included by default when saving screenshots or audio recordings.
- Worked around issue preventing keyboard from working in full screen mode in Arnold and Frodo.
- Resolved a number of situations where keyboard input would be registered even though the emulator window was not active.