Merge branch 'release/0.8' into release/0.7

* release/0.8: (22 commits)
  Update Changelog for 0.7.3 release
  4xm: Add a check in decode_i_frame to prevent buffer overreads
  wma: initialize prev_block_len_bits, next_block_len_bits, and block_len_bits.
  Update RELEASE file for 0.7.3
  swscale: #include "libavutil/mathematics.h"
  vp3dec: Check coefficient index in vp3_dequant()
  svq1dec: call avcodec_set_dimensions() after dimensions changed.
  mpegtsenc: fix handling of large audio packets (sorry i have no sample, just a user report)
  h264: Use mismatching frame numbers in fields
  swscale: Readd #define _SVID_SOURCE
  vp6: Fix illegal read.
  vp6: Fix illegal read.
  vp6: Reset the internal state when aborting key frames header parsing
  vp6: Check for huffman tree build errors
  vp6: partially propagate huffman tree building errors during coeff model parsing and fix misspelling
  imgutils: Fix illegal read.
  qdm2: check output buffer size before decoding
  Fix out of bound reads in the QDM2 decoder.
  Check for out of bound writes in the QDM2 decoder.
  vmd: fix segfaults on corruped streams
  ...

Conflicts:
	Doxyfile
	RELEASE
	VERSION

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