Version 1.13.0 

Version 1.12.0 

Version 1.11.0 

Update version to 1.9.4 

Update version to 1.9.3 

Update version to 1.9.2 

Fix bundler version dependency 

Update version to 1.9.0 

Update version to 1.8.0 

Update version to 1.7 (#99)