- Changed label component to test if the label has a "for" attribute first.
- Disabled a test in fileHasLabel, since the same test is already done in the test file, but expects a different (correct) result.
- Added check to placeholder if element is "title", since that always has display:none. It failed because of the inapplicable test
- Removed old idRefHasCorrespondingId, is replaced with new test idrefsHasCorrespondingId