tap by specifying clone_url directly

[sorah]

this patch makes brew tap can clone repository not hosted by GitHub.

I know some formulas that can't be in public, but needed to be shared with others.
So, I wanted to tap a repository not hosted by GitHub.

Usage

$ brew tap user@host:path/to/repo.git
$ brew tap git://host/path/to/repo.git
$ brew tap http://host/path/to/repo.git

$ brew untap repo

[mrkn]

+1

[jacknagel]

This is a dupe of #11695

[sorah]

oh. I believe this patch or #11695 to be merged into master :)

thoughts?

[adamv]

This will need to be rebased on top of the current Homebrew code base for review. Closing, though; please open an updated implementation as a new pull request.