Merge remote-tracking branch 'ispc/stable-3.0.5' into stable-3.0.5

install/autoupdate.php

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/sql/incremental/upd_0074.sql

install/sql/incremental/upd_0076.sql

install/sql/incremental/upd_0077.sql

install/sql/ispconfig3.sql

install/tpl/nginx_apps.vhost.master

install/update.php

interface/lib/classes/ispconfig_request.inc.php

interface/lib/classes/validate_password.inc.php

interface/lib/lang/se.lng

interface/web/admin/form/system_config.tform.php

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

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

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

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