Web service

Activate json support
Re-activate idle time

products/all.json
people/all.json
transactions/push
se agrega autocomplete de busqueda de productos
Buscador y paginador en products/index
Merge branch 'backend-cake' of github.com:eclass/kiosko into backend-cake
Limpieza y orden product->autocomplete
Paginator People + Paginador Bootstrap en people/index /products/index