Updated changelog

Author: korczis

CHANGELOG.markdown CHANGELOG.mdCHANGELOG.markdown renamed to CHANGELOG.md

@@ -1,11 +1,14 @@
 # GoodData Ruby SDK Changelog
 
-## 0.6.6
+## 0.6.7
 - Fixed the scaffolding templates to take advantage of new syntax (missing references in dataset refs) 
 - Fixing inclusion of extensions when using CLI
 - Fixed pollers and added/fixed tests for schedules and processes
 - Added with_connection which automatically disconnects when you are done
 
+## 0.6.6
+ - Various fixes
+
 ## 0.6.5
 - Mixins