Version 0.17.0

Version 0.16.0

Version 0.15.8

Version 0.15.7

Version 0.15.6

Version 0.15.5

Merge pull request arrow-py#712 from jadchaar/version-0.15.4

Increment version and add to changelog

Version 0.15.3

Version 0.15.2

Merge pull request arrow-py#665 from jadchaar/version-0.15.1

0.15.1 version increment and changelog