Bumps [gopkg.in/src-d/go-git.v4](https://github.com/src-d/go-git) from 4.8.0 to 4.10.0. - [Release notes](https://github.com/src-d/go-git/releases) - [Commits](https://github.com/src-d/go-git/compare/v4.8.0...v4.10.0)
* Inital routes to git refs api * Git refs API implementation * Update swagger * Fix copyright * Make swagger happy add basic test * Fix test * Fix test again :)