Only send stats to clients if there is a client watching them.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3846 ed5197a5-7fde-0310-b194-c3ffbd925b24

core/app.js

@@ -128,6 +128,12 @@ function socket(request, response, client) {
 				if (process && process.timeout > 0) {
 					setTimeout(ping, process.timeout);
 				}
+			} else if (message.action == 'enableStats') {
+				process.stats = message.enabled;
+				if (!gStatsTimer) {
+					sendStats();
+					gStatsTimer = true;
+				}
 			} else {
 				if (process && process.eventHandlers['message']) {
 					await invoke(process.eventHandlers['message'], [message]);