Merge pull request #110 from BNoiZe/master

multi-stack support for Sparkle-Theme
don't show form to add e-mail addresses if no domain exists

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
Merge branch 'master' of github.com:Froxlor/Froxlor
Merge branch 'master' of git://github.com/Froxlor/Froxlor