bottombarupdate in case of a new mqtt message

mqtt_sniffer.py

+import bottombar as bb
 import argparse
 from console_bottombar import BottomBar
 import getpass
                 logfile = open('mqtt_sniffer.log', 'w')
             logfile.write("%9.04f::%s::%s\n" % (ts, message.topic, data))
             logfile.flush()
+    bb.redraw()
 
 
 if __name__ == "__main__":