[DROOLS-611] Metadata and metaclass
[DROOLS-488] Pluggable Belief Systems
[DROOLS-488] Pluggable Belief Systems - Expire events from the proper source
[DROOLS-640] Exception declaring a class with a subclass-typed attribute
[DROOLS-641] Named consequences don't work with events
[DROOLS-642] Named consequences don't respect timers in STREAM mode