GEOT-4961: JDBCDataStore aggregate queries delegate to LimitingVisitor, if present, checks of limit usage
Merge pull request #650 from mbarto/geot4961_jdbc_delegate_to_limitingvisitor

GEOT-4961: JDBCDataStore aggregate queries delegate to LimitingVisitor, if present, checks of limit usage
[GEOT-4964] xsd-ows does not encode/parse RangeClousure attribute in RangeType
[GEOT-4964] further parsing/encoding fixes