refs #50,#26 Implement mobile friendly checkboxes.  Fix the bug on the
"Answer Questions" phase..
refs #26,#14 Fix so that we can upload other image types.
refs #26,#14 Fix typo
refs #69,#26 Unblock the UI if we are waiting.
refs #26,#19 Some typos in the JS for deltion methods, need top handle
them and also decrement the NUMQ.
refs #26,#64.  Implement picture save.  Use data we have already in the
session, and use the Questions listoOfPictures that it has to get the
image data.  This is ok to store in JSON because it is base 64 encoded.
Let's see how badly or not this bloats our DB in the long run.
refs #62,#26 Fix for server not allowing the teacher to add questions
from an IQSet containing Student originated questions.  We used to
require them all to be authored by "teacher".  No more.