[IMP] point_of_sale: when the product search returns only one product, order it on 'enter' keypress
[FIX] point_of_sale: barcode scanner was not working in firefox due to usage of event.keyCode instead of event.which
[FIX] point_of_sale: currency should be fetched from the pricelist instead of the company
[MERGE] from trunk
[MERGE] point_of_sale: recent fixes from 7.0