add collection.template.data[n].options because duh.

This is not canon but we need it to move forward.

Yes, this means you could do collection.items[n].data[y].options. Don't do that.

hat tip: http://schinckel.net/2012/03/10/collection%2Bjson-primer-%28and-comments%29/

reference: https://github.com/mamund/collection-json/pull/6