ExpressionTypes as ObligationExpression/AttributeAssignmentExpression
- Fixed support of PolicySet in StaticRefPolicyFinder
- ConfigurationStore: improved JAXB and XML schema support for
loading/validating XML configurations of finder modules 
- Moved BindingUtility to thales package where Thales added classes
should be (separate from Sunxacml(-derived) classes)
- Code cleanup: fixed raw types, for-each instead of while loops,
removed useless casts