First pass at a `radio_button_group` accessor.
Fix comment example.
Initial commit for radio button group tests
Merge pull request #1 from sivart84/radio_button_group_tests

Initial commit for radio button group tests
Replace `clear` method with `values` method

The `values` method that will return an array of values for the radio buttons in the group.
Fix label index and path.
Fixing cucumber step ambiguity

Also removing tests for selecting radio buttons by text, as that feature
is no longer supported.
Merge pull request #2 from sivart84/cuke_fixes

Fixing cucumber step ambiguity
Fix undefined cukes
One last fix for failing cuke
Fix negative assertion
Merge pull request #204 from sivart84/master

New accessor for radio button groups.