Migration from jcenter.

Merge pull request igreenwood#21 from igreenwood/release/1.2.1

Bump to 1.2.1

Merge pull request igreenwood#20 from igreenwood/release/1.2.0

Bump to 1.2.0

Merge pull request igreenwood#16 from igreenwood/release/1.1.0

Bump to 1.1.0

Bump to 1.0.3

Merge pull request igreenwood#9 from igreenwood/release/1.0.2

Bump to 1.0.2

Update README.md

Update README.md

Merge pull request igreenwood#2 from igreenwood/release/0.6.0

Release/0.6.0

Bump to 0.5.0