show upload progress on import course view

STUD-2017

Perhaps to make the side effecting of `request.status` more evident, this var should be `request_status` or some such? In the best of worlds, you'd add a method to whatever type `request` is, but that'd be too pervasive given how much `request` is used for other things. Perhaps add a local function for setting the state and calling save so the save calls make more sense? Anyway, a lot of words from me about a minor potential future confusion.