Layout
@param  {[type]}   assemble [description]
@param  {Function} next     [description]
@return {[type]}            [description]
function(assemble, next) {
      grunt.verbose.writeln('Assembling default layout'.cyan);

      // load default layout
      loadLayout(
        assemble.options.layout,
        assemble,
        function(err, results) {
          if (!err) {
            assemble.options.defaultLayout = results;
          } else {
            grunt.warn(err.message);
          }
        });

      next(assemble);
    }