During cleanup deliver all former packing lists.

The first one found is just good enough.

While using old server (which does not send _requested_state on SoftwareRelease)
it defaults to available.

Note: console comes bundled with library, no need to do backward compatibility.

Note: Backward compatible change -- state defaults to 'available'.

relative_url has to be passed to SoftwareInstance_bangAsSelf

This is really *interesting* column.

...except already destroyed or being destroyed.

There could be big difference between ordering an instance and finding a
partition.

So in order to reflect real setup time set order's start date to moment when
partition has been found.

This reverts commit db776b07.