Added the new/updated content marker to all the views where it makes sense.

Includes these Views and displays:

- oa_event_list: Upcoming Events, Upcoming Events Small
- oa_event_detail: Event Detail List

Here are the screenshots:

![selection_043](https://f.cloud.github.com/assets/191561/2472591/147ec6ba-b038-11e3-8bb1-40bd9d71c52e.png)

![selection_044](https://f.cloud.github.com/assets/191561/2472592/1870c728-b038-11e3-9a78-ee4d5d8d2e99.png)