Update jquery.chained.remote.js

this changes will alowed to orger results by select option text

there is a syntax how to use new option:
$("#series").remoteChained({
  parents : "#mark",
  url : "/api/series.json",
  orderby: 'value'
});

this is common usability to order results by option text.

For example selects car makes and models.
Makes and models must be ordereb by names not by his database ids.