o Minor features (git scripts):
    - Add a -t <test-branch-prefix> argument to git-merge-forward.sh and
      git-push-all.sh, which makes these scripts create, merge forward, and
      push test branches. Closes ticket 31314.
    - Add a -r <remote-name> argument to git-push-all.sh, so the script can
      push test branches to a personal remote. Closes ticket 31314.