Implement WriteDatasetToFile stub.
Merge branch 'master' of github.com:ntnu-smartmedia/goldfish

# By Dag Einar Monsen
# Via Dag Einar Monsen
* 'master' of github.com:ntnu-smartmedia/goldfish:
  Reformat SMDataModel.
  Fix build of SMDataModel.
  Create SMPreference class to contain multiple preference values.