code: function doPluginTask(owner, taskCallback) {
          var plugins = grunt.config.get('app_plugins_work_plugins');
          var plugin;
          if (!!plugins && 0 < plugins.length) {
              plugin = plugins.shift();
              // update variable.
              grunt.config.set('app_plugins_work_plugins', plugins);
              taskCallback(plugin);
              grunt.task.run(owner.nameArgs);
          }
      }
docs: __________________________________________________________________________________________________________________________________________________________________________________________// Helper API