Add services file for repo API
Add dev wrapper file for app

The dev wrapper file lets the app be used with mock services
Lint code
Lint code
Prototype the list, read and write methods of the repo API and use
them as mock services in the dev wrapper
Move siteName to global scope
Add common resources: global vars (vars.js) and utilities (util.js)
Simplify repo service to use common resources
Merged resolved
made changes to pass jshint.