cosmetics
updated Ukrainian translation by Arestarh
MpegSplitter: cosmetics
Remove custom code needed in the past in order to successfully link ffmpeg library.
update CFLAGS and ffmpeg/config.asm and ffmpeg/config.h
update ffmpeg (n0.8-19666-g98c4268)

Notes: broken atm because our custom files need to be updated too.
update h264_recov.c for the recent changes
Update our files for the recent FFmpeg changes.
H264 DXVA Decoder: Rewrote h264_dxva.c based on recent h264.c.