Merge pull request #172 from rickcarlino/master

Temporary fix guide featured_images
I like mutations
Initial rake task for crops from ITIS
merge conflicts
update to new ruby 1.9 hash
Merge pull request #174 from simonv3/add-rake

Add rake
Merge branch 'master' of github.com:FarmBot/OpenFarm into mutations
Temporary fix for mutations issues