gruntwork-io/terratest v0.29.0 on GitHub

Modules affected

git.GetCurrentBranchName will now return empty string when called from detached HEAD (previously this returned HEAD).
Added git.GetCurrentGitRef and git.GetCurrentGitRefE functions which will return:
- Branch name - in case of non-detached state
- Tag - in case of detached state and existing tag on commit
- Commit SHA - in case of detached state and non existing tag on commit
Miscellaneous documentation fixes

Special thanks to the following users for their contribution!