Fix to support LLVM/ruby that ships with Xcode 5.1
Merge pull request #577 from seanknox/fix-xcode51-ruby

Fix to support LLVM/ruby that ships with Xcode 5.1
update Puppetfile homebrew version
Merge pull request #590 from jakecraige/master

update Puppetfile homebrew version
Added virtualbox,vagrant,leiningen,clisp and haskell.
Set global ruby version to 2.0.0.