3.20.0212

New functionality
• Last modified date added also to custom products
• It is now possible to upload invoiceadr.xls/xlsx-file to the company file-library which will then populate a list of valid invoice-addresses for the user to choose from in the cart/checkout. Applies only to responsive GUI
• Added sort-functionality to productlistings in webshop-/multibuy-views. Default is sort priority. A change of sort-criteria will be stored in a cookie and remembered for all categories. Applies only to responsive GUI