Better translation

htdocs/langs/en_US/products.lang

@@ -90,19 +90,19 @@ ServiceLimitedDuration=If product is a service with limited duration:
 MultiPricesAbility=Several segment of prices per product/service (each customer is in one segment)
 MultiPricesNumPrices=Number of prices
 AssociatedProductsAbility=Activate the package feature
-AssociatedProducts=Package product
-AssociatedProductsNumber=Number of products composing this package product
+AssociatedProducts=Virtual product
+AssociatedProductsNumber=Number of products composing this virtual product
 ParentProductsNumber=Number of parent packaging product
 ParentProducts=Parent products
-IfZeroItIsNotAVirtualProduct=If 0, this product is not a package product
-IfZeroItIsNotUsedByVirtualProduct=If 0, this product is not used by any package product
+IfZeroItIsNotAVirtualProduct=If 0, this product is not a virtual product
+IfZeroItIsNotUsedByVirtualProduct=If 0, this product is not used by any virtual product
 Translation=Translation
 KeywordFilter=Keyword filter
 CategoryFilter=Category filter
 ProductToAddSearch=Search product to add
 NoMatchFound=No match found
 ProductAssociationList=List of products/services that are component of this virtual product/package
-ProductParentList=List of package products/services with this product as a component
+ProductParentList=List of virtual products/services with this product as a component
 ErrorAssociationIsFatherOfThis=One of selected product is parent with current product
 DeleteProduct=Delete a product/service
 ConfirmDeleteProduct=Are you sure you want to delete this product/service?