if event is not in view, scroll to position when day is clicked

[oa495]

When you click on a day, you see the events on that day light up with a green border. If the event is further down the list, we want an automatic scroll to that event.

[juliepanda]

• allow only one event to light up
  Right now, if you click on one event and then another on calendar, more than one event light up in the list at the same time, which can be confusing..