Add jasmine to promdash

Adds jasmine to promdash. Testing can be done in two ways: From the command line, run `$ RAILS_ENV=test rake spec:javascript` to run the jasmine tests. Alternatively, you can run the promdash server and navigate to `http://localhost:3000/specs` to see output for the tests.

## Outstanding Issues:
Both jquery and angular are required to run the tests, but they weren't being recognized in the spec folder. They are currently in `app/assets/javascripts`, and should be moved before this is merged. They are getting included in `application.js` and messing things up when running the actual app.