x264 mini-transition soname 118->120

[Reinhard Tartler]

Hi dear release team,

Now with libx264-120 in the archive, we can start transtion the existing
packages to the archive so that the new x264 package can transition to
testing. The following source packages need to be rebuilt:

gst-plugins-ugly0.10
libav
libav-extra
libquicktime
mplayer
vlc

In terms of 'ben' lingo, the transition has the following parameters:

Affected: .build-depends ~ /libx264-dev/
Good: .depends ~ /libx264-120/
Bad: .depends ~ /libx264-118/


Please schedule binNMUs for the above mentioned packages on all architectures.

Thank you.

-- 
regards,
    Reinhard