fix gtk3 button active state
adjust gtk2 tooltip border gradient
adjust gtk3 focused entry border color
update README
Merge branch 'master' into zenx

Conflicts:
	README.md
	README.od
	Zen-papero/gtk-2.0/gtk-widgets.rc
	Zen-papero/gtk-3.0/gtk-widgets.css
	Zen-verda/gtk-2.0/gtk-widgets.rc
	Zen-verda/gtk-3.0/gtk-widgets.css
	Zen/gtk-2.0/gtk-widgets.rc
	Zen/gtk-3.0/gtk-widgets.css
	ZenX-blua/gtk-2.0/gtk-widgets.rc
	ZenX-blua/gtk-3.0/gtk-widgets.css
	ZenX-griza/gtk-2.0/gtk-widgets.rc
	ZenX-griza/gtk-3.0/gtk-widgets.css
	ZenX-nigra/gtk-2.0/gtk-widgets.rc
	ZenX-nigra/gtk-3.0/gtk-widgets.css
	ZenX-nokto/gtk-2.0/gtk-widgets.rc
	ZenX-nokto/gtk-3.0/gtk-widgets.css