enable mdns; tweak wifi info POST

esp-link/cgiwifi.c

@@ -113,7 +113,7 @@ wifiAddStateChangeCb(WifiStateChangeCb cb) {
   DBG("WIFI: max state change cb count exceeded\n");
 }
 
-static bool mdns_started = false;
+static bool mdns_started = true;
 static struct mdns_info mdns_info;
 
 // cannot allocate the info struct on the stack, it crashes!

html/wifi/wifi.js

@@ -184,7 +184,7 @@ function changeSpecial(e) {
   addClass(cb, 'pure-button-disabled');
   ajaxSpin("POST", url, function(resp) {
       removeClass(cb, 'pure-button-disabled');
-      getWifiInfo();
+      //getWifiInfo(); // it takes 1 second for new settings to be applied
     }, function(s, st) {
       showWarning("Error: "+st);
       removeClass(cb, 'pure-button-disabled');