avformat/nutenc: use av_calloc()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avformat/nutenc: use av_reallocp_array()

Fixes memleak on allocation error.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Adding a line to Changelog about FFV1 version 1.3 now being stable

FFV1 version 1.3 is non-experimental as of Aug 26, 2013. Adding that to the changelog.

Signed-Off By: dericed <dave@dericed.com>

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