Add some additional functions for stats to stats.py script.
This included getStudents, getUsers, getMentors, getOrgAdmins, countStudentsWithProposals and some style fixes.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
Make the mentor and organization admin comment submission on student proposal nicer. Now drop down box allows you to select comment type and based on selected type and your current Role shows you available comment options. Left TODO to put inline JS into separate JS file.
Patch by: Tim Ansell (small fixes by Pawel Solyga)
Reviewed by: Pawel Solyga