more backup restoring

- multiple select now restores
- hotspot now restores
    - this took forever due to a bug with adding highlited selections
on the image map before the image map was fully loaded
    - a bug still exists where if you reload the exam on a hotspot
question, one in every 10 times the selection box will load in th wrong
place (fixable by going to a different question and coming back)
- question page now redirects to unsubmitted exam