Adding before script and prompt info for debugging Travis CI
Trying out specifying git versions
Attempting to use ppa-purge for downgrading
Fixing variable quoting
More script corrections
Everything looks good. Relocating echoes
Trying out `--short` to verify Travis will fail at appropriate version
Relocating git --version to .travis.yml
Confirmed fails as expected. Moving back to working get_git_branch
Updated .travis.yml descriptions
Updated CHANGELOG