Revert "actually disable C4995 and C4996 for udf.cpp"

This reverts commit 03ca3eff5fccbfe6bfc1583789d4fe91af8b1900.
build.bat, mpc-hc_setup.iss : add ICL13 support
update ffmpeg (n0.8-18069-gfd165ac)
Work around a libavresample crash
switch to av_assert2
h264.c: remove custom code
ffmpeg: change the preprocessor check for the mips includes
clean up project references
ffmpeg: remove custom code