Add task to install gerrit commit-msg hook.
Merge pull request #3 from csmith/install-commit-msg-hook

Add task to install gerrit commit-msg hook.
Update Gerrit commit hook
Revert "Update Gerrit commit hook"

This reverts commit 7ec738a7767eae347922e5a51adee1cd572a6d7e.
Update Gerrit commit hook.
Merge pull request #4 from greboid/master

Update Gerrit commit hook.