(Mac OS X) Homebrew formula / cask does not work out of the box

[simlei]

1. apparently there is a homebrew formula for JCT:

• https://github.com/Homebrew/homebrew-cask/blob/HEAD/Casks/jcryptool.rb
• https://github.com/Homebrew/homebrew-cask/commits/2f1f82d8cdd2dee19d4975088309a2f723a1a573/Casks/jcryptool.rb

2. It does not work out of the box; most probably because we still can't sign the Mac release and homebrew doesn't do our xattr -r -d com.apple.quarantine ./jcryptool.app thing which we require Mac users to do upon unzipping our releases.