2006-11-28  Manish Singh  <yosh@gimp.org>

        * plug-ins/pygimp/pygimp-api.h
        * plug-ins/pygimp/pygimp.h
        * plug-ins/pygimp/gimpmodule.c: export common object types via
        _PyGimp_API, and remove the PDBFunction_Type hack. Also define
        the common object structures here.

        * plug-ins/pygimp/pygimp.h: remove hack for Python < 2.3, since
        we require Python 2.3 now.

        * plug-ins/pygimp/gimpui.override
        * plug-ins/pygimp/gimpui.py: create and use specialized wrappers
        for get/set_active methods for GimpIntComboBox and derived types.
        Fixes #376102.