Release mega-20180122

Changes in mega-20180122 (since mega-20180119):

ESPEasy release bot (4):
      automaticly updated release notes for v2.0-20180119
      automaticly updated release notes for v2.0-20180120
      automaticly updated release notes for v2.0-20180121
      automaticly updated release notes for mega-20180122

Edwin Eefting (8):
      test suite: added dht22
      added QUAD to c002. fixed getBearing and SENSOR_TYPE_WIND.
      test suite: started on testcase to test all sensor types via the dummy plugin
      test suite: generelized controller testing in test005
      cleaned up nodo logging. fixed domotics SENSOR_TYPE_WIND inconsistency
      test suite: fixed issues, started working on nodo
      test suite: lots of refactoring and fixing
      test suite: fixes. testing boot gpio states

Gijs Noorlander (2):
      [issue #745] Set IPaddress to 0.0.0.0 when read from empty string (#754)
      [#732] Only process P029 MQTT helper when enabled (#743)