Minor chnage
Modified _sendCommand to do the send on a separate thread; this is needed as
otherwise a request from PVS, if it includes a wx widget (e.g., a dialog),
will cause a deadlock, as the wx MainLoop is needed for widgets, but it is
busy waiting for the response from PVS.
Added event bindings for running _sendCommand on a separate thread
Modified same-expand-name* to allow /= and ≠ to be considered equal.
Added
Added short form of URLs consisting of just a port, e.g., -pvs 22334 -url 22335
Added README.GUI
Minor fix