code: function() {
  			var settings = this.settings;
  			var sort = settings.sortField;
  			if (typeof sort === 'string') {
  				sort = [{field: sort}];
  			}
  	
  			return {
  				fields      : settings.searchField,
  				conjunction : settings.searchConjunction,
  				sort        : sort
  			};
  		}
docs: Returns search options for sifter (the system
  for scoring and sorting results).
  
  @see https://github.com/brianreavis/sifter.js
  @return {object}