Create a new schevogtk2.form.FormBoxWithButtons widget, containing much of the functionality that was in FormWindow.
Create a new schevogtk2.form.FormBoxWithButtons widget, containing much of the functionality that was in FormWindow.

FormWindow contains a FormBoxWithButtons and hooks into its events.

Signed-off-by: Matthew R. Scott <878b2bb7d7b44067d87275810e479f4abd7737ae@gmail.com>

Schevo/schevogtk