Original commit message from CVS:
Bring all the other stuff in gst/ up to match libgst.la's GObject port.
Fixed some minor problems with the signalling stuff in the core.
IT WORKS!
Original commit message from CVS:
Added mthodes to request an element to create pads: gst_element_request_pad*
This can be used to construct a tee and a muxer/mixer/aggregator element.
Moved the tee element to elements/ because it can now be handled with the
new pad request features.
The padfactory also has some changes: a pad can now be of presence REQUEST,
which means that the pad can be requested from this plugin (doh).