Don't do --no-ff merges for feature branches that exist of a single commit (no benefits are gained in those situations, only complexity is added).

Functionally implemented the gitflow-feature subcommand. Starting and finishing feature branches is now possible in your repos.

Use a safer, more reliable way of determining what branches are available, by parsing the 'git branch' output instead of depending on files in the FS.

Add checks for all the commands, to assure we're working in a clean and safe environment, before actually modifying stuff in the repo.

Add function gitflow_require_branches_equal() to test whether local and remote branches have diverged.

- gitflow_require_local_branch()
- gitflow_require_remote_branch()
- gitflow_require_branch()