Merge remote-tracking branch 'qatar/master'

Merge remote-tracking branch 'qatar/master'

* qatar/master: (40 commits)
  swf: check return values for av_get/new_packet().
  wavpack: Don't shift minclip/maxclip
  rtpenc: Expose the max packet size via an avoption
  rtpenc: Move max_packet_size to a context variable
  rtpenc: Add an option for not sending RTCP packets
  lavc: drop encode() support for video.
  snowenc: switch to encode2().
  snowenc: don't abuse input picture for storing information.
  a64multienc: switch to encode2().
  a64multienc: don't write into output buffer when there's no output.
  libxvid: switch to encode2().
  tiffenc: switch to encode2().
  tiffenc: properly forward error codes in encode_frame().
  lavc: drop libdirac encoder.
  gifenc: switch to encode2().
  libvpxenc: switch to encode2().
  flashsvenc: switch to encode2().
  Remove libpostproc.
  lcl: don't overwrite input memory.
  swscale: take first/lastline over/underflows into account for MMX.
  ...

Conflicts:
	.gitignore
	Makefile
	cmdutils.c
	configure
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/libdiracenc.c
	libavcodec/libxvidff.c
	libavcodec/qtrleenc.c
	libavcodec/tiffenc.c
	libavcodec/utils.c
	libavformat/mov.c
	libavformat/movenc.c
	libpostproc/Makefile
	libpostproc/postprocess.c
	libpostproc/postprocess.h
	libpostproc/postprocess_altivec_template.c
	libpostproc/postprocess_internal.h
	libpostproc/postprocess_template.c
	libswscale/swscale.c
	libswscale/utils.c

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