Move timeout calculation out into new IAA utils module
Refactor so answerQueue is only needed by callGrade
settings isn't used at all
Check that itemAllocation and grading come out with the same answer, on average
Apparently you don't need the iaa bit
Refactor so only item_allocation gets questions
Remove grade property too, we're now just a set of functions
Remove IAAUtils module, doesn't achieve anything
This comment is irrelevant now
Mis-counted questions, mean the last one anyway
Collapse down numansvec and corransvec, generate difficulty directly
Work out modal, not mean. Add tests for new questions