Merged revisions 2181-2262 from stable branch.

install/dist/lib/debian60.lib.php

install/dist/lib/fedora.lib.php

install/dist/lib/gentoo.lib.php

install/dist/lib/opensuse.lib.php

install/lib/installer_base.lib.php

install/sql/ispconfig3.sql

install/tpl/apache_apps.vhost.master

install/tpl/config.inc.php.master

interface/lib/app.inc.php

interface/lib/classes/functions.inc.php

interface/lib/classes/listform.inc.php

interface/lib/classes/remoting.inc.php

interface/lib/classes/remoting_lib.inc.php

interface/lib/classes/tform.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