Modifying JFormFieldTest to incorporate required as boolean only.
Refactoring JFormFieldTest and adding test for readonly and disabled attribute.
Merging refactor-formfields into Unit-testing and solving conflicts.
Adding test for diffrent attributes setted by setup method of JFormField class.
Adding some missin attribute in __get method and cleaning class space separated list.
Merge branch 'refactor-formfield' into Unit-testing