Update libretro.h
(OSX) Set min OS version to 10.6
Fix uninitialized value warning from Valgrind.
Remove libsnes functions
Fix bad implementation of INY in slow mode.
win32: correctly parse unicode command line arguments
Merge commit 'a47d93f86ae8613095a6bfe2676d3be80bfdc7bc'
libretro: remove missing function from .def file