Make templates render on non-xml modulestores

* load the template at descriptor init
* make it  export inline, not as a pointer
* update import/export test to do export to initial directory

Dormsbee/new jobs

Kimth/lms coderesponse

Even Faster Course Grading

* instead of being lazy

We don't want lazyness, and will save the proper fix (moving work into descriptor load for later)

New external grader format: JSON-serialized dict

Feature/victor/cms drag and drop

Move old externalresponse XML parser into subfunction, fix correctness bug (should be correct/incorrect not True/False)

A bunch of minor changes and bug fixes for the courseware

Feature/bridger/django1.4

Feature/halogenandtoast/table of contents

* NOTE: the new order is NOT saved to the server!

* still a few that I haven't tracked down...

Conflicts:
	common/djangoapps/util/middleware.py

improve staff_problem_info jquery, so the histogram is also toggled