Checking in changes prior to tagging of version 0.013.

Changelog diff is:

diff --git a/Changes b/Changes
index e9ad390..3fc0549 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension API-BigBlueButton

 {{$NEXT}}

+0.013 2014-05-07T16:13:27Z
+
+    - small fix in synopsis
+
 0.012 2014-05-07T14:17:58Z

     - new git repo