Deprecate Monty_MySQL and Monty_MySQL_Easy classes
Set return type for queries with setReturnType method
Add README entry for setReturnType
Add Changelog entry stub for 2.2.0
Merged 'develop'.
Add Changelog entry for setReturnType
Finish set-default-return-type
Finish deprecate-mysql
2.2.0 release date
2.2.0 release