Setup for moodle 2.5 conversion.
add files form 2.+ template.
Add db install file.
Steps along.
Iteration on question editing form.
Add en lang file.
Add some default values to the question class.
Shorten db table names to 28 char limit.
Small modifications to make quest types page run.
Move icon.gif to proper place.
Enables question editing.

* Question creating, editing, saving, loading and deleting now work.
* Answers not supported yet.
Basic answers saving, but not loading.
Tolerance populates now.
Question editing works.
Add help tip for remotegrade.
Start of xmlrpc logic.
Processing a question now works in preview.
Image display works, student answers saved.
Grading locally works.
Feedback works now.