Drop Sale Order expanding, as no Sale Orders are going to be present.

Switch alarm to expand *and* solve causality state in same moment. See
9d1b92cc which is changing causality state
on delivery state change.

Update test to reflect the change.

Also deliver immediately.

Contain actions, skins, property sheets, documents, constraints.

Check divergence (for calculating and building) really often and while checking only move to one of possible states (solved or diverged).

For diverged ones try rarely to solve divergence automatically.

updateSimulation replaces Delivery_updateAppliedRule

Delivery lines with setup resource are required for security calculation.

As simulation and deliveries are less critical, run them less often in order
to give processing power to other tasks.

Avoid playing directly with deliveries and reuse direct linking between
Software Installation and Computer.

Also move out error reporting from Computer to Software Installation.

This document will represent state of installation software on computer.