[FIX] use the qty and uom from the pr line when creating a new po line.
[ADD] unit price of the pol set to 0.
[MERGE] addons-vauxoo-cicsa revno 1150.
Merge branch '7.0' of github.com:Vauxoo/addons-vauxoo into 7.0-pr_line_related_po_line-fix-rev-2567-kty
Merge pull request #33 from vauxoo-dev/7.0-pr_line_related_po_line-fix-rev-2567-kty

[MERGE] the purchase order lines created via a purchase requisition will now have the same product quantity, product uom that the one in the purchase requisition line. Also the unit price is set to 0 because the analyst will introduce it manually.