HV-730 Propagate "validationAppliesTo" to composing constraints
HV-730 Making caching an internal aspect of ConstraintHelper; Avoiding creation of temporary lists
HV-734 Adjusting to the latest BV API xsd (changes to cross parameter constraint config)
HV-735 Properly tracking the tree-fold state of 'ignore-annotations'
HV-734 Fixing comment
HV-737 Adding check that constrained elements are not configured twice