Fixed ActivityInstanceTest
Added ApplicationTest
Implemented Application model
Added SubscriptionTest
Implemented Subscription model
Merge remote-tracking branch 'origin/master' into applications_subscriptions
Combined Application and Subscription
Added extra tests to SubscriptionTest
Added RESTendpoints for Subscription
Fixed possible nullpointer
Teacher should always have a School
Split Subscrip. into Application and Subscription
Merge remote-tracking branch 'origin/master' into applications_subscriptions
Removed obsolete flow div
Added Subscription.js
Activity.name NotEmpty & coordinator may be null
Fixed undefined coordinator bug
Fixed small bug
Finished Subscription employee interface

This commit breaks the current SubscriptionTest, a new one exists which
we be commited when improved to the database behaviour of Subscription
have been finished.
Method name fix

(forgot to select this one earlier)