Optimize and clean up Python3 code (#3) * Optimize Python3 code Multiple encoding translations is slowing down the app enough to miss messages occasionally causing the main controller to restart. Optimize out meaningless translations, etc. to make faster. * Make RS485 CMD be an integer, not hex string * ret['dest'] is also an int * Ack and nextAck are ints, too * We only support single post method, no Message needed * Fix SPA status report