sbt/sbt-git — pull request #42 by evvers (2014-06-25 21:56:51+00:00)
Title: Add GIT_DIR variable checking

From [Git documentation](http://git-scm.com/docs/git.html):
```
If the GIT_DIR environment variable is set then it
specifies a path to use instead of the default
.git for the base of the repository.
```