Move from gstreamer-0.10 to gstreamer-1.0. Bootstrap the autotools
scripts.
Changes to get it to build with gstreamer-1.0. Had to remove some
functionality. None of the effected code paths tested, but the following
sanity test works:
    gst-client --session create " videotestsrc name=vtest !  ximagesink"
    gst-client --session -p 0 play