Nested serial timeout check

Should give a significant performance improvement, reducing the delay
before a received byte is processed. Limits timeout periods to
increments of 1000, though.

Arduino/LEDstream_FastLED/LEDstream_FastLED.ino

@@ -222,13 +222,14 @@ void timeouts(){
 	if((t - lastAckTime) > 1000) {
 		Serial.print("Ada\n"); // Send ACK string to host
 		lastAckTime = t; // Reset counter
-	}
+
 		// If no data received for an extended time, turn off all LEDs.
 		if((t - lastByteTime) > SerialTimeout) {
 			memset(leds, 0, Num_Leds * sizeof(struct CRGB)); //filling Led array by zeroes
 			FastLED.show();
 			lastByteTime = t; // Reset counter
 		}
+	}
 }
 
 void loop(){