Add rake to Gemfile
Add rake to Gemfile

faradayio/ci1,factorylabs/integrity,forresty/integrity,erik-escobedo/integrity,p/integrity,integrity/integrity,integrity/integrity,p/integrity,forresty/integrity,erik-escobedo/integrity,factorylabs/integrity,faradayio/ci1,dkastner/prism_ci,integrity/integrity