Use trade phase to match movements.

Note: Trade phase is setup twice: once on object and then as
membership_criterion_category.

Conflicts:
	bt5/erp5_simulation_test/bt/revision

Introduced by mistake in 7ff48df4

move too generic solvers from erp5_simulation to erp5_simulation_test, because they should not be used as they are in real applications.

Add test to show a failure ot web page to image when more than one external image is used in web page body.

Just use use category.

As lazy causality is added to buildable movements, differentiate assertion.

Separate discount and tax phases.

It is required to match movements.

It allows to match not directly connected Simulation Movements with links.

It is implicitly set by Business Process, and as it is dynamic in lazy case do
implicit update comparison.

Serialization via activity tag is specific for some portal types not for all. As we have a way to enable it per portal type (in type based method) no need to have it here.

Context can be None, there is no need to log.

getBusinessLinkValueList method is called many times without context and this
pollutes log heavily.

add empty init scripts for Person and Organisation so that we can override init script without overriding these portal type definitions themselves.

Accept business_link_list on searchMovementList in order to test each found
movement precisely against Business Process.

If any Simulation Movement will become not buildable anymore reset causality
link.

When calling searchMovementList pass Business Links in order to allow select
only interesting movements.

Use predicate test method of Business Links in order to find matching one.

Fail in case if none found or in case if predicate matches too many.

Note: As updated design assume that Simulation Movements w/o Business Link are
not buildable at all it will render all "legacy simulation movemements", those
pre-Business Process, to be non buildable.

During expand check if movement is buildable and only then allow to set
causality link to Business Process.

http://www.imagemagick.org/Usage/masking/#remove

If no module is selected, check nothing.