a8n: Support BitbucketServer when creating campaigns from campaign plans (!6575) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge a8n/bbs-create-changesets into master Nov 13, 2019

Created by: mrnugget

This is part of #6085 and does the following:

Add CreateChangeset to BitbucketServerSource (including tests)
Add tests for the GithubSource CreateChangeset method
Change the existing ChangesetSource interface to include CreateChangeset