message: Removing the GPIO contrib from default-pallette
diff: "type": "activity",
  "ref": "github.com/TIBCOSoftware/flogo-contrib/activity/error"
  },
  - {
  - "type": "activity",
  - "ref": "github.com/TIBCOSoftware/flogo-contrib/activity/gpio"
  - },
  {
  "type": "activity",
  "ref": "github.com/TIBCOSoftware/flogo-contrib/activity/log"
  