bumped version to 0.15. 

bumped version to 0.14. 

bumped version to 0.13. 

bumped version to 0.12. 

bumped version to 0.11. 

bumped version number to 0.10. 

bumped version number to 0.09. 

bumped version number to 0.08. 

bumped version to 0.07. 

feature: added _VERSION field. also bumped version number to 0.06.