The version-bump job currently is only useful for the release workflow but does not handle branch-cutting type of version bumping. We should improve the job-template [0] to have a switch for either:

1) Release mode Runs:

lftools version release "$RELEASE_TAG"
lftools version bump "$RELEASE_TAG"

2) Branch cutting mode Runs:

lftools version bump "$RELEASE_TAG"

Another issue we'd have to deal with is the line where we run `git checkout -b branch stream/branch`. When run against the master branch doing this causes an error because we're already on the master branch.

[0] https://github.com/opendaylight/releng-builder/blob/master/jjb/autorelease/autorelease-templates.yaml#L212-L271