Add more examples of multiple radios and check boxes
Add more examples of multiple radios and check boxes

as stacked elements and inline elements.

rafaelfranca/simple_form-bootstrap,npy179/simple_form-bootstrap,npy179/simple_form-bootstrap,rafaelfranca/simple_form-bootstrap,vaishalitekale/simple_form-bootstrap,pivotalcommon/simple_form-bootstrap,weixing2014/simple_form-bootstrap,vaishalitekale/simple_form-bootstrap,rafaelfranca/simple_form-bootstrap,npy179/simple_form-bootstrap,vaishalitekale/simple_form-bootstrap,pivotalcommon/simple_form-bootstrap,weixing2014/simple_form-bootstrap,pivotalcommon/simple_form-bootstrap,weixing2014/simple_form-bootstrap