* added Super Game Boy emulation (thanks to gambatte for the Game Boy core)
* extended hybrid scanline/cycle PPU renderer to support Mode7 register caching; fixes scanline flickering on NHL '94 title screen
* all windows (other than the main window) can be closed with the escape key now
* file dialog path selection now accepts typed paths; can be used to access hidden directories and network shares
* file dialog's game information panel can now be disabled
* fixed a crashing issue when the file dialog was given an invalid path
* fixed screenshot capture save location
* added screenshot capture option to tools menu
* state manager now auto-closes when loading a state; it can be reopened quickly with F3
* fixed GZip archive loading
* fixed NTSC off-by-one filter bug on hires screens
* extended Scale2x, LQ2x and HQ2x to properly filter hires screens
* added Pixellate2x filter