pygtk: add gtk-demo files
pygtk: add gtk-demo files

superdump/cerbero,nirbheek/cerbero-old,nirbheek/cerbero-old,shoreflyer/cerbero,cee1/cerbero-mac,justinjoy/cerbero,ramaxlo/cerbero,ikonst/cerbero,nirbheek/cerbero,GStreamer/cerbero,ikonst/cerbero,ford-prefect/cerbero,multipath-rtp/cerbero,ylatuya/cerbero,fluendo/cerbero,centricular/cerbero,BigBrother-International/gst-cerbero,fluendo/cerbero,nirbheek/cerbero,brion/cerbero,lubosz/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,AlertMe/cerbero,EricssonResearch/cerbero,ford-prefect/cerbero,ylatuya/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,atsushieno/cerbero,cee1/cerbero-mac,brion/cerbero,jackjansen/cerbero-2013,multipath-rtp/cerbero,fluendo/cerbero,ramaxlo/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,lubosz/cerbero,flexVDI/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,sdroege/cerbero,nzjrs/cerbero,sdroege/cerbero,jackjansen/cerbero,jackjansen/cerbero-2013,EricssonResearch/cerbero,BigBrother-International/gst-cerbero,ford-prefect/cerbero,EricssonResearch/cerbero,justinjoy/cerbero,GStreamer/cerbero,AlertMe/cerbero,sdroege/cerbero,ford-prefect/cerbero,brion/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,ramaxlo/cerbero,superdump/cerbero,centricular/cerbero,ylatuya/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,flexVDI/cerbero,jackjansen/cerbero,atsushieno/cerbero,davibe/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,atsushieno/cerbero,EricssonResearch/cerbero,flexVDI/cerbero,multipath-rtp/cerbero,OptoFidelity/cerbero,ramaxlo/cerbero,ikonst/cerbero,nzjrs/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,nzjrs/cerbero,sdroege/cerbero,davibe/cerbero,AlertMe/cerbero,flexVDI/cerbero,fluendo/cerbero,brion/cerbero,OptoFidelity/cerbero,justinjoy/cerbero,ikonst/cerbero,nicolewu/cerbero,nzjrs/cerbero,GStreamer/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,jackjansen/cerbero,AlertMe/cerbero,lubosz/cerbero,sdroege/cerbero,superdump/cerbero,BigBrother-International/gst-cerbero,nirbheek/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,justinjoy/cerbero,atsushieno/cerbero,jackjansen/cerbero,shoreflyer/cerbero,BigBrother-International/gst-cerbero,davibe/cerbero,atsushieno/cerbero,centricular/cerbero,nirbheek/cerbero-old,jackjansen/cerbero-2013,lubosz/cerbero,cee1/cerbero-mac,shoreflyer/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nzjrs/cerbero,davibe/cerbero,superdump/cerbero,ylatuya/cerbero,GStreamer/cerbero,nicolewu/cerbero,ikonst/cerbero,nirbheek/cerbero-old,flexVDI/cerbero,nirbheek/cerbero,shoreflyer/cerbero,fluendo/cerbero,nicolewu/cerbero,jackjansen/cerbero-2013,multipath-rtp/cerbero,brion/cerbero,shoreflyer/cerbero,OptoFidelity/cerbero,ramaxlo/cerbero,AlertMe/cerbero,jackjansen/cerbero-2013,EricssonResearch/cerbero,cee1/cerbero-mac,OptoFidelity/cerbero,BigBrother-International/gst-cerbero,GStreamer/cerbero,multipath-rtp/cerbero