Add proper generation of Student entities and StudentProposal entities to seed_db module.
Add link for generating 200 Students to seed_db.html template.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
<html>
<head><title>Something went wrong</title></head>
<body>
We ran into a problem while serving your request, please try again.
</body>
</html>