Adding environment, emerald framework wrapper

Adding the environment file that contains environment information. Also
adds the initial emerald framework wrapper (which does very little right
now), and the main app wrapper (which is intentionally untested).

Adds the msising spec_helper file that adds matchers for the jasmine
testing.

Updates to index.html to support the bootstrapping now being done in
main.js.

Adds env.cfg, a json file that is loaded at runtime to tweak
configuration parameters.