Added 2.1.8 release notes.

doc/release_notes_2.1.8.txt

@@ -0,0 +1,21 @@
+
+                              Release Notes
+                             ejabberd 2.1.8
+
+  ejabberd 2.1.8 is the ninth release in ejabberd 2.1.x branch,
+  and includes a PubSub regression bugfix.
+
+  Download the source code and installers from:
+    http://www.process-one.net/en/ejabberd/
+
+
+  The change is:
+
+- Fix issue on PubSub preventing publication of items (EJAB-1457)
+
+
+
+  Bug reports
+
+  You can officially report bugs on ProcessOne support site:
+  http://support.process-one.net/

src/mod_pubsub/mod_pubsub.erl

@@ -2024,8 +2024,8 @@ publish_item(Host, ServerHost, Node, Publisher, ItemId, Payload) ->
 		    DeliverPayloads = get_option(Options, deliver_payloads),
 		    PersistItems = get_option(Options, persist_items),
 		    MaxItems = case PersistItems of
-			0 -> 0;
-			1 -> max_items(Host, Options)
+			false -> 0;
+			true -> max_items(Host, Options)
 		    end,
 		    PayloadCount = payload_xmlelements(Payload),
 		    PayloadSize = size(term_to_binary(Payload))-2, % size(term_to_binary([])) == 2