Removed FarmService.data from FarmCtrl.js.
partial.farm.html now directly accesses farmService.data
FixedAssetsCtrl and partial-fixed-assets.html now directly reference FarmService.data.farm
Reverted to FarmService.data.farm until I understand better how scoping works
Moved saveFarm from FarmEditCtrl and FarmFixedAssetsCtrl to FarmCtrl
Renamed plantil to plantio.