Version bump

Author: mruettgers

src/config.h

@@ -4,7 +4,7 @@
 #include "Arduino.h"
 #include "Sensor.h"
 
-const char *VERSION = "2.2.0";
+const char *VERSION = "2.2.1";
 
 // Modifying the config version will probably cause a loss of the existig configuration.
 // Be careful!