Add acceptedStudentsCSVExport function to stats.py script. This funtion is used to generate CSV with all accepted students. It still needs some work and I left TODOs there. I also added helper function for saving data to CSV, which can be reused for other kinds of reports.

# This module is DEPRECATED!
#
# You should no longer be using django.template_loader.
#
# Use django.template.loader instead.

from django.template.loader import *