Merged revisions 3028-3045 from stable branch.

install/dist/conf/opensuse112.conf.php

install/lib/installer_base.lib.php

install/lib/update.lib.php

install/sql/ispconfig3.sql

install/tpl/config.inc.php.master

interface/lib/app.inc.php

interface/lib/classes/simplepie.inc.php

interface/lib/config.inc.php

interface/lib/lang/ar.lng

interface/lib/lang/bg.lng

interface/lib/lang/br.lng

interface/lib/lang/cz.lng

interface/lib/lang/de.lng

interface/lib/lang/el.lng

interface/lib/lang/es.lng

interface/lib/lang/fi.lng

interface/lib/lang/fr.lng

interface/lib/lang/hr.lng

interface/lib/lang/hu.lng

interface/lib/lang/id.lng