Place files in /Sublime Text 2/Packages/User and restart sublime text
git clone git:https://github.com/nickgartmann/rabl-syntax-highlighter.git
cd ./rabl-syntax-highlighter.git
cp rabl.tmLanguage ~/Library/Application\ Support/Sublime\ Text\ 2/Packages/User
git clone git:https://github.com/nickgartmann/rabl-syntax-highlighter.git
cd ./rabl-syntax-highlighter.git
cp rabl.tmLanguage ~/.config/sublime-text-2/Packages/User/
Not sure yet...