gst/: commented-out deprecated code, compiles at last, and works for pipeline creation and state change

Original commit message from CVS:
* gst/arg-types.py:
* gst/common.h:
* gst/gst-argtypes.c:
* gst/gst-types.defs:
* gst/gst.defs:
* gst/gst.override:
* gst/gstelement.override:
* gst/gstmodule.c:
* gst/gstpad.override:
* gst/gststructure.override:
commented-out deprecated code,
compiles at last, and works for pipeline creation and state change
* configure.ac:
updated requirement of GStream (0.9.0), pygtk (2.6.1)
bumped version number (0.9.0.1)