Original commit message from CVS:
* gst/Makefile.am (INCLUDES): Move PYGTK_CFLAGS to common_cflags
instead of INCLUDES
* configure.ac: define HAVE_OLD_PYGTK if we're on pygtk 2.3.91 or
earlier and disable editor checks
* gst/common.h: Add backwards compatible typedef for python < 2.3
and pygtk < 2.3.92