Changed service provider config of CPA Client from url to domain

Add
  
    radiotag.utils: {
      getUri: function() { ... }
      getDomain: function() { ... }
    } 
We should omit the `':'` if the port is not present, so (also using the URIjs documented API):

    var domain = uri.hostname();
    var port = uri.port();

    if (port) {
      domain += ':' + port;
    }

    return domain;