unmask gtk+-3.8.2 for saucy release
disabled 'git-gtkmodelmenuitem-icon-support.patch' because it uses the 'g_icon_deserilize' function which is available >=glib-2.38'
added 'unity-gtk-module' as (designated) replacement for 'appmenu-gtk'
gtk+-3.8.2 (saucy) removed support for this package
use automake-1.12