Completed chapter 3: Ember Boilerplate and Workflow

Note that 'grunt test' still fails with the following error:

Running "mocha:all" (mocha) task
Testing: http://localhost:9000/index.html

Warning: PhantomJS timed out, possibly due to a missing Mocha run() call. Use --force to continue.

Aborted due to warnings.
Merge branch 'master' of github.com:kgish/ember-rocknrollcall