Merge pull request #343 from lioncash/master

[Android] Eliminate the need for several activities.
[GX] disable interrupts when changing video mode
might help with those weird video corruptions people sometimes get
[GX] fix FPS debug text
[GX] fix audio stuttering on exit/low fps
[GX] remove unused variables
[Android] Remove a pointless throws for IOException in ModuleWrapper. There's no way an I/O exception can be thrown in this constructor.