change log level in nodes

* i'm not warning you, i'm letting you know

kamailio/nodes-role.cfg

@@ -60,11 +60,11 @@ event_route[kazoo:consumer-event-nodes-advertise]
 {
     $var(count) = $shtinc(nodes=>$(kzE{kz.json,Node})::count);
     if($var(count) == 0) {
-       xlog("L_WARNING", "$(kzE{kz.json,Msg-ID})|nodes|heartbeat for reconnected node $(kzE{kz.json,Node})\n");
+       xlog("L_NOTICE", "$(kzE{kz.json,Msg-ID})|nodes|heartbeat for reconnected node $(kzE{kz.json,Node})\n");
        $var(count) = $shtinc(nodes=>$(kzE{kz.json,Node})::count);
     } else {
        if($var(count) == 1) {
-          xlog("L_WARNING", "$(kzE{kz.json,Msg-ID})|nodes|heartbeat from new node $(kzE{kz.json,Node})\n");
+          xlog("L_NOTICE", "$(kzE{kz.json,Msg-ID})|nodes|heartbeat from new node $(kzE{kz.json,Node})\n");
        } else {
           xlog("L_DEBUG", "$(kzE{kz.json,Msg-ID})|nodes|heartbeat from existing node $(kzE{kz.json,Node})\n");
        }
@@ -171,7 +171,7 @@ event_route[htable:expired:media]
 
 route[MEDIA_SERVER_UP]
 {
-   xlog("L_WARNING", "nodes|media|$var(Node) reported new media server $var(MediaUrl) in zone $var(Zone)\n");
+   xlog("L_NOTICE", "nodes|media|$var(Node) reported new media server $var(MediaUrl) in zone $var(Zone)\n");
 
 #!ifdef DISPATCHER_ROLE
    route(DISPATCHER_CHECK_MEDIA_SERVER);
@@ -195,7 +195,7 @@ route[MEDIA_SERVER_DOWN]
 
 route[MEDIA_SERVER_RESTART]
 {
-   xlog("L_WARNING", "htable|media|media server $var(MediaUrl) restarted in zone $var(Zone)\n");
+   xlog("L_NOTICE", "htable|media|media server $var(MediaUrl) restarted in zone $var(Zone)\n");
 
 #!ifdef PRESENCE_ROLE
    route(RESET_PUBLISHER);