Picking List: only the first item of an order is printed

[TimSchofield]

I have had a quick look and it isn't as daunting as it first looks. A lot of the script changes were just to add a createdate field in to some tables which the picking list functionality uses. GeneratePickingLists.php makes my old PDFPickingLists.php redundant and it can go along with its header script.

It is worth persisting with as it makes the whole picking list functionality far more professional and detailed. I should have time tomorrow to do a proper diff for you to use.

Tim