LucasArts SMUSH demuxer

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
fate: add tests for SANM and VIMA

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Merge commit 'eeadcdfd1a6f3089b6bf6e194d6ece8d3f113123'

* commit 'eeadcdfd1a6f3089b6bf6e194d6ece8d3f113123':
  LucasArts SMUSH demuxer

Conflicts:
	Changelog
	doc/general.texi
	libavformat/smush.c
	libavformat/version.h

See: bef8fd7099edfac9c487e6eb75d7e6116ad80465
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  fate: add tests for SANM and VIMA

Conflicts:
	tests/fate/video.mak
	tests/ref/fate/sanm

See: 4cdff582068b968f9c2f14ce4bd5a68be069ce11
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Set Matroska private data when muxing Prores.

The specification requires the mov code point to be written as "fourcc".