Problem:    Various inconsistencies in test files.
Solution:   Add modelines where they were missing.  Use Check commands instead
            of silently skipping over tests.  Adjust indents and comments.
            (Ken Takata, closes #6695)

Problem:    Test 37 is old style.
Solution:   Turn it into a new style test. (Yegappan Lakshmanan, closes #4398)

Problem:    Still many old style tests.
Solution:   Convert several tests to new style. (Yegappan Lakshmanan)