Fixed minor typo in submit button.
Instructor MVC routing was missing from report C
Merge branch 'production'
Fixed NPE in renderItemEventWhenClosed()

This was due to the itemEventType possibly being null. The new
logic simplifies things, but will need changed when we support
solutions.
Updated to use more recent examples
Test item rendering now shows sections & rubrics

I have put the post-selection/ordering testPart structure
and rubrics into the rendering for each item, to see how this
looks.

Tidied up the navigation & feedback XSLT and CSS a bit to make
things a bit more uniform.