bump to 0.16.0

prep for v0.15.0 (sarumont#203)

bump version for PyPi deploy (closes sarumont#273)

 bump to 0.13.0

 bump to 0.12.0

 bump version for 0.11.3 (closes sarumont#247)

 bump version, update changelog

bump to 0.11.1

bump version to 0.11.0

bump version for 0.10.0