message: Rolled up nav-react-native with 'es' format
diff: @@ -24,8 +24,9 @@ var items = [
  Object.assign({ globals: { navigation: 'Navigation',
  'navigation-react': 'NavigationReact', react: 'React' } },
  require('./build/npm/navigation-react-mobile/package.json')),
  - Object.assign({ globals: { react: 'React', 'react-native': 'ReactNative',
  - 'd3-interpolate': 'd3', 'd3-ease': 'd3' } },
  + Object.assign({ globals: { navigation: 'Navigation', react: 'React',
  + 'navigation-react': 'NavigationReact', 'react-native': 'ReactNative' },
  + format: 'es' },
  require('./build/npm/navigation-react-native/package.json')),
  ];
  function rollupTask(name, input, file, globals, format) {
  @@ -71,8 +72,9 @@ var itemTasks = items.reduce((tasks, item) => {
  var jsTo = './build/dist/' + packageName.replace(/-/g, '.') + '.js';
  var jsPackageTo = './build/npm/' + packageName + '/' + packageName.replace(/-/g, '.') + '.js';
  item.name = upperName.replace(/-/g, ' ');
  - gulp.task('Build' + name, () => buildTask(name, tsFrom, jsTo, item.globals || {}, item));
  - gulp.task('Package' + name, () => rollupTask(name, tsFrom, jsPackageTo, item.globals || {}, 'cjs'));
  + var { globals = {}, format = 'cjs' } = item;
  + gulp.task('Build' + name, () => buildTask(name, tsFrom, jsTo, globals, item));
  + gulp.task('Package' + name, () => rollupTask(name, tsFrom, jsPackageTo, globals, format));
  tasks.buildTasks.push('Build' + name);
  tasks.packageTasks.push('Package' + name);
  return tasks;
  