Snes9x v1.59.2

Snes9x 1.59.2
Fix out-of-bounds access on APU memory.

Snes9x 1.59.1
Fix sound core breakage.

Snes9x 1.59
Count clock cycles to synchronize SA1 with S-CPU properly. Based mostly on
work by Vitor Vilela.
Only allow instant IRQ when toggling IRQ. Fixes WWF ? Wrestlemania.
Refactored APU output code to buffer less on the client side. Removed 8-bit,
Mono, and Reverse Stereo options.
Consistently handle interlacing when we skip frames.
Changed APU clock to reflect nominal values for original hardware.
Fix C4 square instruction regression.