Refactoring the way we default shipping_method_id

app/assets/javascripts/darkswarm/controllers/checkout_controller.js.coffee

@@ -5,6 +5,11 @@ angular.module("Checkout").controller "CheckoutCtrl", ($scope, $rootScope, order
   $scope.same_as_billing = true
   $scope.order = order
 
+  
+  # Our shipping_methods comes through as a hash like so: {id: requires_shipping_address}
+  # Here we default to the first shipping method if none is selected
+  $scope.order.shipping_method_id ||= Object.keys(order.shipping_methods)[0]
+
   $scope.require_ship_address = $scope.order.shipping_methods[$scope.order.shipping_method_id]
  
   $scope.shippingMethodChanged = ->