[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/inc/functions.inc.php

@@ -18,6 +18,17 @@ function last_login($user) {
     return false;
   }
 }
+function flush_memcached() {
+  try {
+    $m = new Memcached();
+    $m->addServer('memcached', 11211);
+    $m->flush();
+  }
+  catch ( Exception $e ) {
+    // Dunno
+  }
+}
+
 function logger($_data = false) {
   /*
   logger() will be called as last function
@@ -510,6 +521,7 @@ function update_sogo_static_view() {
     $stmt = $pdo->query("REPLACE INTO _sogo_static_view SELECT * from sogo_view");
     $stmt = $pdo->query("DELETE FROM _sogo_static_view WHERE `c_uid` NOT IN (SELECT `username` FROM `mailbox` WHERE `active` = '1');");
   }
+  flush_memcached();
 }
 function edit_user_account($_data) {
 	global $lang;