Attend+an+Event

== =__Attend an Event:__= Synopsis: A Faceplace User chooses to attend an event. Actor/User: Faceplace User Preconditions: User is logged in. Sunny Day Case: Rainy Day Case #1:
 * 1) Upon seeing an event, either from a friend's status or from a user's profile, they can click on the event title.
 * 2) After clicking on the title, a new page loads. This is the event page. It displays the event title, description, the date upon which it occurs, a list of all those attending, and a button to click in order to attend the event. (Rainy Day #1)
 * 3) When clicking this button, the event is added to the User's 'attended events'. It is displayed as their latest status and is displayed on their event's page.
 * 4) The User stays on the event page. They are later informed with a notification when the date for the event arrives. 
 * 5) After the date for the event, the event is removed entirely (deleted from attended events and from Faceplace in general).
 * 1) If the User is already attending the event, they see a button to unattend an event instead of attend. When clicked it removes the event from the User's attended events.