Parallel versions of OpenSSH and related tools

Current version

Recent formula history

ilovezfs pssh: depend on python instead of :python
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Dominyk Tiller pssh: style fixes
Dominyk Tiller various: update remaining googlecode URLs

Formula code at GitHub