Revert "xbmc: add crosscompile-mess-fix-patch, revert if switching to XBMC vanilla"

This reverts commit 1510929afe8048a46d7b19ce4361ba19a321078d.
Revert "xbmc: depends on ffmpeg again, revert if switching to XBMC vanilla"

This reverts commit 15124cb99e3ddfbda869dec96a3392be96d116f6.
Revert "xbmc: update FM patches, revert if switching to XBMC vanilla"

This reverts commit b0fd40f8e14c0152b5838fdc349ab3e7ac4a0d49.
Revert "new package: readd package 'ffmpeg', revert if switching to XBMC vanilla"

This reverts commit dc6715d3b63f3b8d45df602f45d952717ec1a8db.
xbmc: update to xbmc-13.alpha-18cebf0. rebase and update FM patch
Merge pull request #2937 from stefansaraev/ffmpeg-mess

ffmpeg mess