Several website related fixes.

install/lib/installer_base.lib.php

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

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

interface/web/admin/lib/module.conf.php

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

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

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

interface/web/sites/web_domain_list.php

server/conf/vhost.conf.master

server/plugins-enabled/apache2_plugin.inc.php