[FFmpeg-cvslog] Tag n2.5.7 : FFmpeg 2.5.7 release

[git at videolan.org]

[ffmpeg] [branch: refs/tags/n2.5.7]
Tag:    4787cd879ee989ea03eff31ac4e4a75f53dd66b9
> http://git.videolan.org/gitweb.cgi/ffmpeg.git?a=tag;h=4787cd879ee989ea03eff31ac4e4a75f53dd66b9

Tagger: Michael Niedermayer <michaelni at gmx.at>
Date:   Sat May 23 04:56:10 2015 +0200

FFmpeg 2.5.7 release