CHANGELOG.md in grafana-rb-0.15.0 vs CHANGELOG.md in grafana-rb-0.16.0

@@ -1,4 +1,8 @@
+## Grafana-rb 0.16.0 (April 12, 2017) ##
+
+* Fix gem on ruby 2.1.5.
+
 ## Grafana-rb 0.15.0 (April 11, 2017) ##
 
 * Support of multiple datasources and notifications.
 
 ## Grafana-rb 0.14.0 (April 10, 2017) ##