git clone https://github.com/fd/opts.git ~/Github/fd/opts
cd ~/Github/fd/opts
gem build opts.gemspecrvm gemset use globalgem install opts-0.0.1.gemgit clone https://github.com/fd/git_workflow.git ~/Github/fd/git_workflow
cd ~/Github/fd/git_workflow
gem build git_workflow.gemspec(Check your RVM gemset if necessary) and install this gem
gem install git_workflow-0.0.1.gem