[FFmpeg-cvslog] Merge remote-tracking branch 'qatar/master'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Feb 26 11:18:16 2014 +0100| [5d166de25853a41c6e2e2067f253271f22f94098] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  lavfi: add compand audio filter

Conflicts:
	Changelog
	doc/filters.texi
	libavfilter/Makefile
	libavfilter/af_compand.c
	libavfilter/allfilters.c
	libavfilter/version.h

The filter is added as new one so as to ease clean merging of its changes
in debug-able steps
See: 6b68e2a43b3407522080be50a2a19cff2f9715ef
Merged-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5d166de25853a41c6e2e2067f253271f22f94098
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