Add assignUserToTask and getUserTask methods and routes to the database and the server
Change getList to return an access value aswell
Merge remote-tracking branch 'origin/develop' into feature/usertasks

Conflicts:
	Server/src/se/chalmers/dat255/grupp12/Database.java
Constant name for database
Add all assigned users to a task
Merge branch 'feature/usertasks' into develop