add .data() function. cleaned up PR #221, added tests, updated readme
worked in @MatthewMueller 's comments on PR #264
worked in @fb55 's improvements for PR #264
Remove extra whitespace
Document `contents` and add test
Merge pull request #270 from jugglinmike/doc-contents

Document `contents` and add tests
Merge pull request #264 from andi-neck/master

add .data() function. cleaned up PR #221 from @rafaelrinaldi, added tests, updated readme