Release mega-20180119

Changes in mega-20180119 (since mega-20180118):

ESPEasy release bot (2):
      automaticly updated release notes for v2.0-20180118
      automaticly updated release notes for mega-20180119

Edwin Eefting (2):
      refactoring test suite controller stuff
      test suite domoticz mqtt + found few fixmes

jctual (1):
      DHT plugin update (#736)