formula for xctool

xctool.rb

# to install:
# curl https://raw.github.com/gist/5525293 > /usr/local/Library/Formula/xctool.rb && brew install xctool --HEAD
require 'formula'

 class Xctool < Formula
   homepage 'https://github.com/facebook/xctool.git'
   head 'https://github.com/facebook/xctool.git'

   def install
     system "./build.sh"

     bin.install Dir['build/**/Products/Release/xctool']
     cp Dir['build/**/Products/Release/*dylib'], bin
   end
 end