add new check, remove duplicate tests
add Comment property for Readability
revert some changes from other branch
Merge branch 'master' of https://github.com/browscap/browscap into remove-duplicate-tests
Merge branch 'master' of https://github.com/browscap/browscap into remove-duplicate-tests
Merge pull request #407 from mimmi20/remove-duplicate-tests

Remove duplicate tests