fix query in admin-customers, improve admin-ipsandports, clean up getThemes(), refs #1287

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
Merge branch 'master' of git://github.com/Froxlor/Froxlor
Pushed jcanvas to version 13.11.07
Updated cron_usage_report in english and german