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

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Nov  4 01:44:06 2011 +0100| [259a960f1b74339626f8da890cc261a4043097fe] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  vp6: Fix illegal read.
  avfilter: Don't copy garbage from the stack when setting up video pictures.
  avcodec: Make sure codec_type is set by avcodec_get_context_defaults2
  avcodec: Remove a misplaced and useless attribute_deprecated
  avconv: add -dump_attachment option.
  avconv: add -attach option.
  avconv: make negative mappings disable only streams from the specified file
  fmtconvert: fix int32_to_float_fmul_scalar() for windows x86_64

Conflicts:
	libavcodec/options.c

Merged-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=259a960f1b74339626f8da890cc261a4043097fe
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