[MERGE] OPW 381630 Shipping address of the company in the receipt does not match...

When going through the act_window "Receptions" in Purchase Order, address field of stock.picking(Receptions)
form shows the partner name instead of partner address.And also, the picking address should be filled with
the destination_address from particular PO and if that is not the case then the address of warehouse should
be considered otherwise shipping address or default address of Company should be considered.
Currently, it is taking the address of Supplier if destination address not specified in PO.

bzr revid: jcv@openerp.com-20120312124151-g8xjtno53wf3ts0e