* 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).
* added mutex to client proxy to protect stream
* added try/catch to ipc log outputter buffer thread
* protected ipc client proxy list with mutex (saw a weird stl error, might be caused by cross-thread weirdness)
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.
Nick Bolton