Added a boolean "synchronous" parameter to BRoster::Shutdown(). Used in the

Deskbar to initiate the shutdown process asynchronously. Couldn't test it,
because opening the Be menu doesn't work:
***PANIC: BW: Can't find view with ID: 19 !***



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13722 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/shutdown.cpp

@@ -174,7 +174,7 @@ main(int argc, char **argv)
 	} else {
 		BRoster roster;
 		BRoster::Private rosterPrivate(roster);
-		status_t error = rosterPrivate.ShutDown(gReboot, askUser);
+		status_t error = rosterPrivate.ShutDown(gReboot, askUser, true);
 		fprintf(stderr, "Shutdown failed: %s\n", strerror(error));
 		return 2;
 	}