Merge branch 'master' into 'master'

various fix

fix ipv6 auth compatibility for `attempts_login` table and `auth.log` file (Now ipv6 is supported for attempts login verification and log file (which can be used by fail2ban unstable))

fix XMPP correct nameserver server_id for DNS RR creation/modification

fix XMPP correct Jabber ID field in XMPP Account page

fix XMPP anonymous

-REVERT fix Let's Encrypt web domain alias support

See merge request !486