[rules-dev] More efficient retraction without shadow proxies

I've spent the last week or so working on a performance branch. The end result is slightly better performance and we don't need shadow proxies any more, apart from those that want protecting in a multi-threaded environment - so they can be optional and off by default. If we an combine this with the compiled alpha node network stuff we should be getting some good performance and userbility gains for our next release - assuming the cep and concurrency stuff hasn't hampered performance too much :) http://anonsvn.labs.jboss.com/labs/jbossrules/branches/righttuple/ In the branch, not everything compiles, but enough compiles to run manners and waltz. I now need to undertake the hard work of merging with trunk, not easy as edson has changed a lot for the CEP stuff. Mark