add dummy gobject.defs file used for documentation generation.
add dummy gobject.defs file used for documentation generation.

amremam2004/pygtk,GNOME/pygtk,nzjrs/pygtk,amremam2004/pygtk,GNOME/pygtk,Distrotech/pygtk,nzjrs/pygtk,Distrotech/pygtk,nzjrs/pygtk,amremam2004/pygtk,Distrotech/pygtk,GNOME/pygtk