Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  lavf/msnwc: Return 0 if the probe function does not detect msnwc-tcp.
  lavf/mpegts: Return 0 if the probe function does not detect mpegts.
  lavf/img2dec: Improve detection of valid Quickdraw images.
  lavf/asfdec: Reduce minimum header size.
  Changelog: Add jpeg 2000 improvements before they get forgotten.
  lavf/img2dec: Autodetect dds frames.

Conflicts:
	libavformat/version.h

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