[FFmpeg] version bump to n1.2 (rev e820e3a) - lib/ffmpeg including xbmc patches.
[FFmpeg] version bump to n1.2 (rev e820e3a) - modified xbmc files.

	lib/DllAvFormat.h
	lib/Makefile.in
	lib/ffmpeg/build_xbmc_win32.sh
	project/Win32BuildSetup/BuildSetup.bat
	project/Win32BuildSetup/buildmingwlibs.sh
	tools/depends/native/gas-preprocessor-native/gas-preprocessor.pl
	xbmc/DllPaths_win32.h
	xbmc/cores/dvdplayer/DVDAudio.h
	xbmc/cores/dvdplayer/DVDCodecs/DVDCodecs.h
	xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecFFmpeg.cpp
	xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecFFmpeg.h
	xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecLibMpeg2.cpp
	xbmc/cores/dvdplayer/DVDCodecs/Video/DXVA.cpp
	xbmc/cores/dvdplayer/DVDDemuxers/DVDDemux.h
	xbmc/cores/dvdplayer/DVDPlayerAudio.h
	xbmc/cores/dvdplayer/DVDStreamInfo.h