Merge remote-tracking branch 'qatar/master'

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  avconv: Replace goto redo on decode fail with continue.
  avconv: Remove dead store.
  libx264: add 'crf_max' private option.
  libx264: add 'weightp' private option.
  libx264: add 'rc_lookahead' private option.
  libx264: add 'psy_trellis' private option.
  libx264: add 'psy_rd' private option.
  libx264: add 'aq_strength' private option.
  libx264: add 'aq_mode' private option.
  libx264: add 'cqp' private option.
  libx264: add 'crf' private option.
  lavc: remove vbv_delay option
  lavf utils: Fix bad indentation.
  avconv: use av_clip_int16 for audio clipping

Conflicts:
	libavcodec/libx264.c
	libavcodec/options.c

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