Side effect of returning self slave in slave list is used in SlapTool.

Narrow to only return Slave Instance related delivery lines.

_checkComputerPartitionSalePackingListState is fine tuned and selects only
delivery lines related to computer partition *and* software instance.

Slave instances are again in intereset.

This reverts commit de713c10.

This reverts commit a9f93ac6.

Confirm became meaningless.

Let vifib_erp5 pull all vifib_* dependencies, including vifib_base,
which will fetch all erp5_* dependencies.

Sale Orders can be confirmed, by SaleOrderLine_tryToAllocatePartition will not
allocate if not possible.

vifib_open_trade shall depend on erp5_open_trade, this is logical.

Person shall have validated Open Order created. Empty one assuers, that nothing
is to do for given Person.

vifib_base configures Item portal type provided by erp5_item

There is path in vifib_open_trade which requires Accounting Period portal type.

Conflicts:
	master/bt5/vifib_upgrader/bt/revision

Use query syntax.

Hosting Subscription periodicity shall be set when there is related at least
started instance setup delivery.