Pass around event objects for Billboard
Validate event severities to avoid styling fail
Avoid clobbering new events when dismissing old ones
Allow events to include an action link to popup a url
If session expires, offer login popup via Billboard message
Let event actions reload as well as popup urls
Offer to reload page on a 400 error
Allow popup actions to show a message after popup closes
Suggest user tries again after login popup
Allow setting a timeout on events
Popup close messages disappear after 10 seconds
Refill new task field if adding fails
Placate jshint