[Docker API] Use TLS encryption for communication with "on-the-fly" created key paris (non-exposed)

[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

data/web/js/mailcow.js

@@ -110,7 +110,7 @@ $(document).ready(function() {
 
   // Disable disallowed inputs
   $('[data-acl="0"]').each(function(){
-    if ($(this).attr('class') == 'btn-group') {
+    if ($(this).hasClass('btn-group')) {
       $(this).find('a').each(function(){
         $(this).removeClass('dropdown-toggle')
           .removeAttr('data-toggle')
@@ -124,7 +124,7 @@ $(document).ready(function() {
       $(this).find('button').each(function() {
         $(this).attr("disabled", true);
       });
-    } else if ($(this).attr('class') == 'input-group') {
+    } else if ($(this).hasClass('input-group')) {
       $(this).find('input').each(function() {
         $(this).removeClass('dropdown-toggle')
           .removeAttr('data-toggle')