updated changes.md

Author: Leonardo Menezes

CHANGES.md

@@ -9,4 +9,12 @@ First cerebro release.
 - cluster overview
 - rest client
 - aliases management
-- index creation
+- index creation
+
+###v0.2.0 - August 25h, 2016
+
+#### New features
+- analysis api
+- index template api
+- cluster settings api
+- notify regarding created/deleted indices and joining/leaving nodes