Large speed-ups were made. New features include
YUV overlay (hardware scaling), loading ROMs from
zip archives, reading settings from a config file
(~/.neopop/neopoprc), joystick support, HQ2x/HQ3x
smoothing scalers, sound and throttling
improvements, configurable key and joystick
bindings, pause, 10 state save slots, and
on-screen display.
