fix issue from new test for https://issues.apache.org/activemq/browse/AMQ-2985 - when acking as unmatched, the matching messages that lie inbetwen the sequences need to be added to the ack locations to ensure they don't get deleted when other consumers are done with them. test now enabled for kahaDB
activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/kahadb/MessageDatabase.java