set cancan abilities for harvests

app/controllers/harvests_controller.rb

@@ -1,4 +1,7 @@
 class HarvestsController < ApplicationController
+
+  load_and_authorize_resource
+
   # GET /harvests
   # GET /harvests.json
   def index

app/models/ability.rb

@@ -64,6 +64,10 @@ class Ability
       can :update,  Planting, :garden => { :owner_id => member.id }
       can :destroy, Planting, :garden => { :owner_id => member.id }
 
+      can :create,  Harvest
+      can :update,  Harvest, :owner_id => member.id
+      can :destroy, Harvest, :owner_id => member.id
+
       can :create, Photo
       can :update, Photo, :owner_id => member.id
       can :destroy, Photo, :owner_id => member.id