Reduce log level for incoming crap packets

Add log entry for peer timeout

src/server.cpp

@@ -1328,7 +1328,13 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 	}
 	catch(con::PeerNotFoundException &e)
 	{
-		errorstream<<"Server::ProcessData(): Cancelling: peer "
+		/*
+		 * no peer for this packet found
+		 * most common reason is peer timeout, e.g. peer didn't
+		 * respond for some time, your server was overloaded or
+		 * things like that.
+		 */
+		infostream<<"Server::ProcessData(): Cancelling: peer "
 				<<peer_id<<" not found"<<std::endl;
 		return;
 	}