changes:
Moved rtpmanager from -bad to -good
Implement SEEKING query in more demuxers and decoders (notably mkv, flv, flac)
avimux: adds support to WMA/WMV
cairo: Add cairo-based PDF/PS/SVG encoder element (cairorender)
dv1394src: fix element for live usage
effectv: new elements: rippletv, streaktv, radioactv, optv
flacdec: fix intermittent FLAC__STREAM_DECODER_ABORTED errors when seeking
flacenc: fix issue with broken duration / sample count into flac header in some cases
flvmux: lots of fixes and improvements
id3demux: fix parsing of unsync'ed ID3 v2.4 tags and frames
matroska: add kate subtitle support, add/improve WMA/WMV handling and read
bluray PGS subpicture streams
multipartdemux: support more mime types, do proper flow aggregation
pulsesrc: cleanups, report real latency, set the default slave method to skew
qtdemux: support for agsm, misc. tag reading fixes
rtp: new QDM2 and CELT depayloaders; fix SVQ3 depayloader and make it autopluggable
souphttpsrc: Only assume seekability if the server provides Content-Length
v4l2: add v4l2sink element, open device in NULL->READY, optional gudev support
v4l2src: fix 'hang' with some cameras caused by bad timestamping if no framerate
is available
videomixer: add RGB format support; fix I420 blending
0f3223c172