Enable transparent encryption/decryption of files in a git repo

Current version

git-crypt requires the following formula to be installed:
openssl 1.0.2m SSL/TLS cryptography library

Formula history

Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Andrew Ayer git-crypt 0.5.0
Andrew Ayer git-crypt 0.4.2
Andrew Ayer git-crypt 0.4.1
Andrew Ayer git-crypt 0.4
Ted Pennings Convert all 'def test' formulae to 'test do'
Michael Mior git-crypt 0.3
Michael Mior git-crypt 0.2