Support both GTK+ 1.2 and GTK+ 2.x in single configure scripts.
GTK+ 2.x is used unless --with-gtk2=no is given.
If you have no gtk1 or gtk2 devel packages, use configure.in-gtk1
or -gtk2 and do autoreconf.
Change gtk scroll policy for the main notebook pages in envy24control from
ALWAYS to AUTOMATIC; also raise envy24control version.
Signed-off-by: Alan Horstmann <gineera@aspect135.co.uk>