Changelog

- MicroVU is near finished, complete with RegAlloc for a nice speedup
- MicroVU now also does VU0 macro operations (COP2)
- New Iso loader that's built into the emulator
- Various code cleanups that were long overdue
- Various fixes overall
- GSdx: Changes to usability, some upscaling fixes, less crashes when handling minimizing, etc
- SPU2-X: Changes to the speaker extension (5.1 output should work better)

This will be the last official beta that uses the old GUI.