Added a beta notice on the appliance importing page
PUT /api/v2/user/appliances/<id>/configuration result corrected
Merge remote-tracking branch 'moioli/importing_experimental_notice'

* moioli/importing_experimental_notice:
  Added a beta notice on the appliance importing page
Merge remote-tracking branch 'moioli/api_configuration_put_result'

* moioli/api_configuration_put_result:
  PUT /api/v2/user/appliances/<id>/configuration result corrected