function main() {
  var app = angular.module('myApp', []);
  app.service('LovefieldService', LovefieldService);
  app.service('FetcherService', FetcherService);
  app.controller(
      'QueryBuilderController',
      ['$scope', 'FetcherService', 'LovefieldService', QueryBuilderController]);
}
The entry point of the application.