x264enc: If FPS is available, set VFR to false

https://bugzilla.gnome.org/show_bug.cgi?id=708940
asfdemux: really copy the buffer data

Pass the copy-memory flag to copy the memory for the output buffer,
otherwise we end with 0-sized buffers

https://bugzilla.gnome.org/show_bug.cgi?id=684942
asfdemux: Keep audio error checking fields only for audio

Video shouldn't need to be descrambled, this can cause frames data
to be corrupted

https://bugzilla.gnome.org/show_bug.cgi?id=684942
asfdemux: mo_size check bug fix. mo_size is not mandatory field.

So, don't need to check previous payload's mo_size and current
payload's mo_size when merging it.

https://bugzilla.gnome.org/show_bug.cgi?id=710609
Automatic update of common submodule

From 865aa20 to dbedaa0
mpeg2dec: graceful degradation for badly parsed input
Merge branch 'master' of git://anongit.freedesktop.org/git/gstreamer/gst-plugins-ugly into ruih/master
Merge pull request #3 from cablelabs/merge-2013-11-15

Merge 2013 11 15