Voice and Video GSoC Project

[Maiku]

Today I managed to track down the source of some of the crash bugs and
fixed them. They were due to not having certain GStreamer/Farsight
plugins.

For testers to note: in order to participate in a media session it's
required to have:
 * gstreamer0.10-plugins-bad (not sure which version, but it needs to
include the gstrtpbin plugin)
 * gstreamer0.10-plugins-farsight >= 0.12.6
in addition to the extra compiling requirements of:
 * farsight2-0.10 == 0.02 (aka libgstfarsight0.10-dev)
 * gstreamer-plugins-base-0.10 (aka gstreamer0.10-plugins-base-dev)

Also, note that until Farsight 2's ICE transmitter (libnice) is
completed, NAT traversal won't work very well. So, if you're behind a
firewall, you will probably only be able to start sessions within your
local network.

-Maiku