0.1.1
Miscellaneous changes
Four-screen mirroring support added.

PPU rendering changes
Tile cache memory leak fixed.

Memory mapper support changes
Sunsoft mapper 4 (iNES mapper 68) support added.
MMC3 SRAM disable bit ignored (to fix Star Tropics).

0.1.0
Miscellaneous changes
CPU core optimizations, bug fixes, and timing corrections.
PPU register read behavior corrected.
Keyboard shortcut list dialog added.
Emulated frame counter fixed.
Zoom feature with definable zoom factor added.
Crash-on-exit fix for ROMs without trainers.
Zapper target sprite changed.

Timing changes
PAL/NTSC emulation select added.
Sprite #0 collision detection added with fairly accurate timing.
Sprite overflow detection added.
Sprite DMA timing added.
Sprite #0 collisions and zapper handled during skipped frames.
Vblank NMI state on power-on changed to disabled.
Zapper emulation corrected with fairly accurate timing.
Overall timing fixes and corrections.

PPU rendering changes
Tile caching added.
Line-based sprite emulation.
Background left-edge clipping support added.
Sprite left-edge clipping support corrected.

Memory mapper support changes
Color Dreams PRG banking fixed.
GNROM (iNES mapper 66) support added.
MMC2 CHR banking fixed.
MMC3 four-screen mirroring fixed.
