Add failing test for symlink detection.
Rewrote how diffs are parsed.
Implement symlinks.  Closes #11.
Add SymlinkCount metric.
Remove --debug option because git diff --stat returns different values for symlinks than we do.
Fix case for 'mode change' commit.
Add failing tests for submodules.
Detects submodules.  Closes #12.
Add SubmoduleCount metric.
Fix py2.6 compatibility with re.split
Make the interface for submodules and symlinks more extendable
Merge pull request #17 from asottile/detect_symlinks

Detect symlinks and submodules