Previously, indication was always open when no start and end dates were specified, now it is only active when an indication window was explicitly set.
Adjust the help text accordingly.
This resolves #198

Add docstrings
Remove code-duplications for dispatching user selection on submission overview
Remove code smells
Remove unused admin.py
Remove unused view in views

Fix issue detected while creating test

This endpoint checks for validity of the request and increments the AK interest counter if currently allowed