version 4.5.0

PIThread::stopAndWait now returns bool
PIKbdListener on Linux now use piwaitevent_p and can immediately stop
new base method piZeroMemory, also migrate all "memset 0" to piZeroMemory

libs/main/core/piwaitevent_p.cpp

@@ -46,7 +46,7 @@ void PIWaitEvent::create() {
 	}
 #else
 	for (int i = 0; i < 3; ++i)
-		memset(&(fds[i]), 0, sizeof(fds[i]));
+		piZeroMemory(fds[i]);
 	if (::pipe(pipe_fd) < 0) {
 		piCout << "Error with pipe:" << errorString();
 	} else {