shuffle queue deliveries for more randomness

Zotlabs/Daemon/Queue.php

@@ -55,6 +55,9 @@ class Queue {
 				foreach ($qItems as $qItem) {
 					$deliveries[] = $qItem['outq_hash'];
 				}
+				shuffle($deliveries);
+				hz_syslog(print_r($deliveries, true));
+
 				do_delivery($deliveries, true);
 			}
 		 }

include/network.php

@@ -1729,12 +1729,14 @@ function deliverable_singleton($channel_id,$xchan) {
 		intval($channel_id),
 		dbesc($xchan_hash)
 	);
+
 	if($r) {
 		if(! $r[0]['abook_instance'])
 			return true;
 		if(strpos($r[0]['abook_instance'],z_root()) !== false)
 			return true;
 	}
+
 	return false;
 }