When no payment is available yet, inform that payment information are being
prepared.

When payment is already sent to payzen but still not confirmed, inform about it.

When initial payment is done show order button.

Visible only if there is planned Payment Transaction available for user.

Wrong alarm was disabled.

It should allow to directly order a KVM

Functionality dropped.

Keep code and logic, but make it disabled.

Keep backward compatibility transition.

Keep only original states.

Logic will be not used.

It will ease transition.

It need to be applied also on trade model generated movements.

It needs to follow invoice definition in order to be correctly expanded.

This returns the full list of computer's software release (to install and
installed)