addPhotoURLs, addresses #18
Merge branch 'master' of github.com:SEL-Columbia/formhub.R into photo_urls
new names in snake_case, tiny bug-fix
updating good_eats dataset, fixing brittle tests
add photo URL tests
bump up version number
adding as.data.frame back
updating the documentation using roxygen2
Merge pull request #22 from SEL-Columbia/photo_urls

Photo urls + as.data.frame