code: function() {
  
      // Default options
      var tables = ['cache', 'cache_*', 'history', 'sessions', 'watchdog'];
  
      // Extra tables
      var extras = app.config.pluginconfig.pantheon.skiptables || [];
  
      // Create the string and return
      return _.union(tables, extras).join(',');
  
    }
docs: /*
  Get a string of dru[a; tables whose data to skip