Adjust scaling to match window sizing.
win32: allow port command line arguments to work
win32: use correct color conversion (Zenju)
libretro: do not display half-ready interlaced images
libretro: range-check port id
libretro: rework controller assignment
win32: add xbrz
win32: add 2xbrz/3xbrz
Merge https://github.com/snes9xgit/snes9x

Conflicts:
	libretro/libretro.cpp
	libretro/libretro.h