Merged revisions 2812-2883 from staböe branch.

install/dist/lib/fedora.lib.php

install/dist/lib/gentoo.lib.php

install/dist/lib/opensuse.lib.php

install/install.php

install/lib/installer_base.lib.php

install/lib/update.lib.php

install/sql/ispconfig3.sql

install/tpl/bastille-firewall.cfg.master

install/tpl/config.inc.php.master

install/tpl/debian6_dovecot.conf.master

install/tpl/debian_dovecot.conf.master

install/tpl/fedora_dovecot.conf.master

install/tpl/mm_cfg.py.master

install/tpl/opensuse_dovecot.conf.master

install/tpl/server.ini.master

install/update.php

interface/lib/app.inc.php

interface/lib/classes/plugin.inc.php

interface/lib/classes/remoting.inc.php

interface/lib/classes/remoting_lib.inc.php