Feature/createevent

It would be good if it is merged because i got todo stuff with lisa tomorrow on this.
Features: i can create an Event, when it is created i go to an overview and i can stop the event

Things that are missing:
Tests (which ones would be appropriate here??)
Key is hardcoded
Link is not set
=> Both points are still open for discussion and must be checked with lisa for voting and thomas for architecture

Things that could improve:
showing somehwere that name is requiered (button is just disabled currently)
if you use this method only in the controller, you can have to put it to the scope
just create a normal function

function setStandardValuesForEvent() {
    ...
}