* Update gtk+ to 3.8.0
* Update build to the latest standards
* Remove some GNOME stuff
* Move the plugins to /usr/lib/plugins

	deleted:    libs_toolkit/gtk+3/gtk+-3.6.4-slackware.patch.xz
	new file:   libs_toolkit/gtk+3/gtk+-3.8.0-pkglibdir.patch.xz
	modified:   libs_toolkit/gtk+3/gtk+3.build