Apply AStyle on all files.

Modify some files so that it doesn't break the indentation in a way we don't want.
MPC Audio Decoder: Remove an unneeded conversion step when mixing.
Revert "actually disable C4995 and C4996 for udf.cpp"

This reverts commit 03ca3eff5fccbfe6bfc1583789d4fe91af8b1900.
fix warning
update ffmpeg (n0.8-18047-g12cb21e)
Work around a libavresample crash
build.bat, mpc-hc_setup.iss : add ICL13 support