Homebrew Tap for Universal Ctags

Given the lack of activity on the official Exuberant Ctags source, it has been forked and renamed to Universal Ctags and can be found at https://github.com/universal-ctags/ctags.

Usage

brew install --HEAD universal-ctags/universal-ctags/universal-ctags

Future

When Universal Ctags has a tagged release, this formula should be moved to the official Homebrew repository. The formula should then be deleted from this repo and a tap_migrations.json file be added to ensure an automatic transition for existing users of the formula.