!!Consistency rules and checks

The following describes the rules which are applied to
ensure consistency of the simulations studies data:

A simulate run would result in inconsistencies and is therefore
not executed when

* for default batches (BM): Seeded export and/or batch results 
  exists [Reason: Seeded batches and default batches must not be mixed].

* for seeded batches (BM): Default batch results exists [Reason: Seeded
  batches and default batches must not be mixed].

The following actions are done to ensure consistency after a simulate run 
or a collect run:

* When a simulate run will add export results, the final results are deleted before
  the simulate run [Reason: Prevent inconsistencies between export results and the
  final results].

* Batch results are not considered in consistency checks.
