Clean up "Quiz management" section under admin/

The admin section for quiz module should be cleaned up. There are 14 choices here, which is a lot. Have a look at the first screenshot to see how it compares to (most of) the rest of Drupal.

There are several thing we could do to clean this up, but the big elephant in the room is that each question type has it's own admin page, even though you cannot do anything with 4 of them, and the 7 of them combined hardly containes much. See the second screenshot where I pasted in the full content of these 7 page views.

In addition you have 3 more pages for "export questions", "import quiz questions" and "reimport quiz questions" that could also be combined or at least grouped.

I propose:

• Quiz configuration
• Question configuration
• Reports and statistics
• Import / export