reorganized imports and restructured index

core/forms.py

core/migrations/0021_auto_20170307_2122.py

core/migrations/0025_auto_20170311_1637.py

core/migrations/0030_auto_20170315_1444.py

core/migrations/0031_auto_20170315_1603.py

core/migrations/0032_auto_20170315_1609.py

core/models.py

core/templates/base.html

core/templates/core/index.html

core/templates/core/submission_view.html

core/urls.py

core/views.py