Add json-api-server.js

I'm not pleased with having to manually write JSON strings, and I know
there's a better way. Also not sure about how I handled the
routing/dispatch, but since there's only 2 routes it really shouldn't
matter at this stage of the app.
remove spaces in JSON response
Use JS Objects for generating JSON

Replace hand-coded JSON strings with JSON hashes (or Objects, I'm not
sure what they are defined as at this point.)