Change effective-date from dashboard UI

Allows user to change the end-date of the 1 year reporting period from any provider dashboard.
We're not using jQuery UI on popHealth, as it competes in many spaces (both code-wise and visually) with Bootstrap. I'd recommend using something like http://eternicode.github.io/bootstrap-datepicker/. We're also using [Bower](http://bower.io/) to manage client side resources, the [Bonnie](https://github.com/projecttacoma/bonnie/blob/304c1479ddda8e829fbf958aa84f6be5d95a829e/bower.json#L11) codebase might be a good example of how to include a datepicker with Bower.