Merge branch 'hotfix/4227'

Close #4227
Correct tests for group checkbox & radio attributes
Merge pull request #4232 from Chintanvpatel/radiofix1

Correct tests for group multicheckbox & radio attributes

Conflicts:
	tests/ZendTest/Form/View/Helper/FormMultiCheckboxTest.php
Merge branch 'hotfix/4232' into develop

Forward port #4232