* added non-pod data support to events (event delete can now call dtors)
* improved cleanup of ipc message objects (because of non-pod event data support)
* moved the "message received" event up to ipc server and client (passed on from proxies)
* separated ipc client proxy mutex into read and write (i think read was deadlocking write)
* fixed cpu spinning on ipc log send buffer thread (now uses wait cond like before).
implemented ipc "hello" message (to identify client type)
integ tests working for hello message, but use of ipc in main program has problem with events.
