Fixed exported version

Author: crycode-de

src/radiohead-serial.ts

@@ -25,7 +25,7 @@ import {RHReliableDatagram, RH_FLAGS_ACK, RH_DEFAULT_TIMEOUT,
   RH_DEFAULT_RETRIES} from './RHReliableDatagram';
 
 // export the current version of this module
-export const version = '4.0.0';
+export const version = '4.0.1';
 
 // export some imports to allow an custom usage
 export {