Not used since a while, remaining of old res.request. Requests have been
removed at 881a76dbcf . Links have been kept because still
used in some reference fields. It seems the last use was in OpenERP v9.0
in crm_claim module. As links are not used since a while let us get rid of
it.
Now that property is computed automatically.
In some case, the compute will take the first on available.
So, the order (sequence) allow to specify the priority.
Test from point of sale are base on currency $,
So we force for the test to use a pricelist in dollard (My company, Chicago)
Thibault Delavallée