Merged revisions 2095-2129 which contain bugfixes from stable branch.

docs/INSTALL_CENTOS_5.2.txt

docs/INSTALL_CENTOS_5.4_dovecot_bind.txt

install/dist/lib/centos53.lib.php

install/dist/lib/fedora.lib.php

install/lib/installer_base.lib.php

install/sql/ispconfig3.sql

install/tpl/apache_ispconfig.conf.master

install/tpl/config.inc.php.master

install/update.php

interface/lib/classes/tform.inc.php

interface/lib/lang/id.lng

interface/lib/lang/nl.lng

interface/web/admin/lib/lang/id.lng

interface/web/admin/lib/lang/id_firewall.lng

interface/web/admin/lib/lang/id_firewall_list.lng

interface/web/admin/lib/lang/id_groups.lng

interface/web/admin/lib/lang/id_groups_list.lng

interface/web/admin/lib/lang/id_language_add.lng

interface/web/admin/lib/lang/id_language_complete.lng

interface/web/admin/lib/lang/id_language_edit.lng