* pitivi/instance.py:
* pitivi/check.py:
Added global application instance (instance.PiTiVi) to avoid having to
do some crack like passing pitivi's self down all the objects for the
one single object that needs it.
* pitivi/effects.py:
* pitivi/pitivi.py:
Files fixed to use instance.PiTiVi
* pitivi/timeline.py:
wrong comment
* pitivi/ui/complextimeline.py:
Connect to composition duration update to inform ruler.
* pitivi/ui/layerwidgets.py:
cleanup
* pitivi/ui/mainwindow.py:
* pitivi/ui/timeline.py:
* pitivi/ui/timelineobjects.py:
* pitivi/ui/plumber.py:
* pitivi/ui/viewer.py:
switch to instance.PiTiVi
* pitivi/ui/sourcefactories.py:
First try at showing audio/video FX in the UI
* pitivi/ui/tracklayer.py:
First go at complex timeline source drag/drop


git-svn-id: svn+ssh://svn.gnome.org/svn/pitivi/trunk@698 d3729300-e425-0410-8a4c-d956edccc248