Updated readme, subscription authorization logic

src/Broker/Topic.php

@@ -31,13 +31,8 @@ class Topic
         // TODO check if message id has already been published
 
         foreach ($this->subscribers as $subscriber) {
-            if ($message->private === true) {
-                // TODO check subscriber access
-                $subscriber->deliver($message);
-            } else {
-                // TODO deliver to subscriber
-                $subscriber->deliver($message);
-            }
+            // Deliver to all subscribers
+            $subscriber->deliver($message);
         }
     }