update ffmpeg (n0.8-19006-g15e7533)
ffmpeg: Specify the folders to remove. The MSVC log file was in the folder being removed and thus leading to an error when rebuilding via the VS IDE now that gccbuild.bat error levels are properly set.
build.bat, mpc-hc_setup.iss : add ICL13 support
Cppcheck fixes (WIP)