releasenotes: add notes for Mitaka cycle

* drop reno note, because it's a new module
* add a note that explains it's a new module and the features
  that are supported.

Change-Id: I52b2baf73ae5f06e7c852eeca0b745341913b02e

releasenotes/notes/first_release-49053598de80657d.yaml

@@ -0,0 +1,10 @@
+---
+prelude: >
+    This is the first release of puppet-zaqar, that allows to
+    deploy OpenStack messaging service.
+features:
+  - Deploy zaqar server
+  - Transport support for websocket and wsgi.
+  - Messaging support for mongodb.
+  - Manage Keystone resources to deploy Zaqar.
+  - Manage Database resources to deploy Zaqar.

releasenotes/notes/use-reno-1caaec4ba5aa4285.yaml

@@ -1,6 +0,0 @@
----
-prelude: >
-   Release notes are generated by Reno.
-features:
-  - Release notes are no longer maintained by hand, we now use the reno tool to
-    manage them.