Checking in changes prior to tagging of version v0.1.1

## [v0.1.1](https://github.com/Songmu/godzil/compare/v0.1.0...v0.1.1) (2019-02-23)

* [bugfix] use next tag correctly when generating changelog [#14](https://github.com/Songmu/godzil/pull/14) ([Songmu](https://github.com/Songmu))