Bump rhino requirement to 0.7R3.
Fix export script after new order number param to create product.
Fix import of rules file from manifest.
Move select best pools to it's own Autobind namespace.

Nothing in common with pre-entitlement rules and not attribute driven.
Removing allows us to clean up a lot of boilerplate and unused code.

Discovered an unused path through autobind for manifest consumers that
just grabbed one entitlement from every pool.

A couple tests were against dummy code in test-rules, once I saw that
these were contrary to the code in actual rules I removed these as
well, as the default rules are well tested.