adding rake to Gemspec to get Travis CI working, maybe this should go in gemspec instead
adding rake to Gemspec to get Travis CI working, maybe this should go in gemspec instead

arxpoetica/letter_opener_single_tab,e-accent/letter_opener,fheisler/letter_opener,fheisler/letter_opener,ryanb/letter_opener,ryanb/letter_opener,e-accent/letter_opener,arxpoetica/letter_opener_single_tab