Wiss create event

![image](https://cloud.githubusercontent.com/assets/8709555/4948605/c4537e7c-660f-11e4-958d-93d1710930ac.png)


<!---
@huboard:{"order":5.960464477539062e-07,"milestone_order":1,"custom_state":""}
-->

is this used ? and is it supposed to be an enum or a map of key to the string value of the key...
if you want to make an enum do 
```ts
enum EvenTypeEnum {
  workshop,
  cashier
}
```
outside the class definition