a52: fix undefined left shift of negative value
flac: fix undefined left shift of negative value
vorbis (tremor): fix undefined left shift of negative value
lib: fix object reference leak, fix test suite
contrib: vpx: fix .pc file
contrib: vpx: remove useless condition
contrib: vpx: build scripts do not use bash anymore
contrib: vpx: remove unused patch
contrib: vpx: drop obsolete patch
contrib: drop wince support
contrib: lua: remove useless condition
contrib: theora: drop obsolete patch
contrib: theora: do not run autoreconf
contrib: lame: fix sse optimizations build on win32 with gcc 4.9
contrib: schroedinger: remove obsolete patches
contrib: ass: remove useless condition

Update config.{sub,guess} after extraction
contrib: caca: drop useless conditions
contrib: gnutls: drop useless condition