fix ruby-debug require in Gemfile
fix ruby-debug require in Gemfile

webstream-io/jobsworth,digitalnatives/jobsworth,digitalnatives/jobsworth,ari/jobsworth,digitalnatives/jobsworth,xuewenfei/jobsworth,ari/jobsworth,webstream-io/jobsworth,xuewenfei/jobsworth,rafaspinola/jobsworth,xuewenfei/jobsworth,webstream-io/jobsworth,rafaspinola/jobsworth,rafaspinola/jobsworth,digitalnatives/jobsworth,webstream-io/jobsworth,digitalnatives/jobsworth,ari/jobsworth,xuewenfei/jobsworth,ari/jobsworth,rafaspinola/jobsworth