Add fallback software rendering path for non-libretro GL targets
Add more supported extensions
Add ogm to allowed extensions
Add f4f extension
Drop ifdef on av_freep(video_frame_temp_buffer) - used for non-GLES
mode as well
Uncomment media.fps lines
Link in libavdevice, call avdevice_register_all at retro_init
Merge pull request #2 from libretro/master

Add back fallback software rendering path for non-GL targets