Play Siena release notes:
From v2.0.3, we will try to keep tracks of modifications from now.
The github issues are not traced because  

v2.0.3
----------------------------------------------------------
Third draft of v1.0.0 with bug fixes and code optimization

== BUG FIXES ==
* corrected bugs on EnhancedModel functions which were not
enhanced at all (findById, getByKey & batch)

== ENHANCEMENTS ==
* added tests for EnhancedModel enhanced functions
