Add git hook that prevents key leaking
Dev: https://dev.gitlab.org/gitlab/gitlab-ee/issues/342
Dmitriy
Based on Sytse's suggestion on: https://dev.gitlab.org/gitlab/blog-posts/issues/71#note_56942;
"can we add https://gist.github.com/stevendanna/4db970716cabb8f5def4 to the git hooks in EE?"