Fatih Yalmanbaş

**Motivation** I would rather have repository-pr creation config to be abstracted so that I can use it for other git repository providers too. (Bitbucket, GitHub, GitLab, Internal git repository) **Possible...

This partially resolves #84, updates all dependencies to versions that are available in maven central and removes jcenter from available repositories. Plugin is still published to bintray and it needs...