Add link to TreeViewColumn sizing constants.
Add link to TreeViewColumn sizing constants.

	* pygtk-gtktreeviewcolumn.xml (set_sizing): Add link to TreeViewColumn
	sizing constants.

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