Shared main view and alert system

"Main" layout and controller handles shared aspects of primary content region (title, action buttons, alerts).  The primary content region is the lower right-hand region of attached screenshot.
![screen shot 2014-05-05 at 7 41 52 pm](https://cloud.githubusercontent.com/assets/4119765/2884623/d9902008-d4ae-11e3-9b6f-f2e5ca03390b.png)