v7.0.0

Improve clone speed for big repos (#293)
When initiating the backport process from an existing repository, the clone process can be sped significantly by cloning the local repository instead of the remote repository. For big repositories this changed the clone time from 15 minutes to less than 1 minute.

Bug fix: Show commits in list regardless of merge method (#297)
A bug introduced previously caused some commits to not show up if the resulting pull request was merged or rebased, as opposed to squash merged.
With the fix all commits should again be displayed regardless of merge method.