Merge branch 'develop' into 'patch-dns-zone-rendering'

install/dist/lib/fedora.lib.php

install/dist/lib/gentoo.lib.php

install/dist/lib/opensuse.lib.php

install/lib/installer_base.lib.php

install/sql/incremental/upd_0092.sql

install/sql/incremental/upd_dev_collection.sql

install/sql/ispconfig3.sql

interface/lib/classes/db_mysql.inc.php

interface/lib/classes/remoting.inc.php

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

interface/web/login/index.php

interface/web/login/password_reset.php

server/lib/classes/cron.d/300-quota_notify.inc.php

server/lib/classes/db_mysql.inc.php