[Web] Add system mails (send mails to all mailboxes via LMTP)
[Web] Allow to add more administrators
[Web] Fix domain administrator editing
[Web] Remove some foreign keys
[Web] Remove username from API
[Web] Remove more .php extension from code
[Web] More minor fixes
[Docker API] Create pipe to pass Rspamd UI worker password
[Dovecot] Pull Spamassassin ruleset to be read by Rspamd (MANY THANKS to Peer Heinlein!)
[Dovecot] Garbage collector for deleted maildirs (set keep time via MAILDIR_GC_TIME which defaults to 1440 minutes)
[Web] Flush memcached after mailbox item changes, fixes#1808
[Web] Fix duplicate IDs, fixes#1792
[Compose] Use SQL sockets
[PHP-FPM] Update APCu and Redis libs
[Dovecot] Encrypt maildir with global key pair in crypt-vol-1 (BACKUP!), also fixes#1791
[Web] Fix deletion of spam aliases
[Helper] Add "crypt" to backup script
[Helper] Override file for external SQL socket (not supported!)
[Compose] New images for Rspamd, PHP-FPM, SOGo, Dovecot, Docker API, Watchdog, ACME, Postfix
[Watchdog] Fix IP detection with multiple networks
[Web] Show API field (no docs, no support, wip)
[Web] haveibeenpwned.com implementation
[Web] User and domain admin ACL (no docs, no support, wip)
[Web] Some minor fixes
[Web] Allow to edit alias address
[Web] $_SESSION['return'] now contains arrays and allows multiple returned messages and log entries
[Web] Some language string changes
[Web] General SQL exception handler, remove all try catch handlers
[Web] Alias table now has an ID as primary key
[Web] Be more aggressive with localStorage cleaning
