Wiss update event

PR for help

There are 2 fixme in EventEditForm.jsx

First one, I'm not being able to retrieve the id that is passed from Events.jsx (in the tablesorter)

Second one, I can't retrieve from the backend the event. The call is made, and if I try outputting in the backend the event, it works, I just can't pass it to the frontend... Halp

http://web.mit.edu/sdmorr/Public/halp.jpg
the problem is that react-router doesn't unmount/remount components when you change routes. That means that componentWillMount is called only once and possibly the id is not even valid at that time. You have to use [componentWilReceiveProps](http://facebook.github.io/react/docs/component-specs.html#updating-componentwillreceiveprops) Be aware that `componentWillReceiveProps` is not called the first time so you have to use componentWillMount also.

see https://github.com/my-koop/module.transaction/blob/rc/components/ListBillsPage.jsx#L67 for example