Several additions in this commit:

1. added some CS and javascript (the javascript should later be refactored
into its own file along with all other ui js) for a carousel to display a
list of images on the photos page.
2. completed the data entry for brothers. we now have all current members
since 2001 stores as JSON objects in a big brothers fixture (225 in all!).
3. built out 2 basic routes and did some learning about Application Adapters
in Ember. we now have a route that will return all the brothers in our
database, and a route that will return brothers by year based on a dynamic
section of our URL (www.deltasig.whatever/brothers/<year>/).