Add course api endpoint

[#13]
Add course serializer

[#13]
Make Ember adapter point to the right place

[#13]
Add model for Courses

[#13]
Add route for Courses

[#13]
Add view for Courses

[#13]
Add courses to router

[#13]
Add link to courses route

[Finishes #13]
Merge pull request #16 from gschorkopf/killpack/courses

Killpack/courses
Writes RoundsController#show

* Adds #show action
* Namespaces within API
Creates RoundSerializer

Adds basic attributes
Namespaces RESTAdapter
Implements Round model in Ember
Writes round#show view and route