* 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)
* raised the log-to-console level to DEBUG2
* added force option to ipc log buffer (to side-step the anti-recursion "mechanism")
* made relauncher always relay server/client messages to ipc client (gui)
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.