Update to rake and crops, add data source model
Updates to rake, including adding a data source model
Merge branch 'master' of https://github.com/FarmBot/OpenFarm into add-tests
change to single quotes
Merge branch 'master' of https://github.com/FarmBot/OpenFarm into add-rake
Merge into add-tests
Merge pull request #181 from simonv3/add-tests

Add Rake for importing data