Merged revisions 3100-3175 from stable branch.

install/dist/lib/opensuse.lib.php

install/install.php

install/lib/installer_base.lib.php

install/sql/ispconfig3.sql

install/tpl/apache_ispconfig.conf.master

install/tpl/config.inc.php.master

install/tpl/sasl_smtpd2.conf.master

install/tpl/server.ini.master

install/update.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/web/admin/form/system_config.tform.php

interface/web/sites/lib/lang/ar_ftp_user.lng

interface/web/sites/lib/lang/ar_shell_user.lng

interface/web/sites/lib/lang/ar_webdav_user.lng

interface/web/sites/lib/lang/bg_webdav_user.lng

interface/web/sites/lib/lang/br_webdav_user.lng