Update README.md

Typo
Remove methods for clearing radio buttons

Remove methods for clearing radio button
Correct typos in documentation
Merge pull request #237 from jkotests/correct_typos_in_doc

Correct typos in documentation
Merge pull request #234 from RichCrook/patch-1

Update README.md
Merge pull request #231 from daneandersen/master

bug with indexed properties allowing access of elements on other indexed properties.
added changelog entry
Merge pull request #236 from jkotests/remove_clear_radio_button

Remove methods for clearing radio buttons