Working with ngForm and subcontrollers. Also fixing bulk order specs

spec/javascripts/unit/darkswarm/controllers/checkout_controller_spec.js.coffee

@@ -7,6 +7,7 @@ describe "CheckoutCtrl", ->
     module("Darkswarm")
     order = {
       submit: ->
+      navigate: ->
     } 
     inject ($controller, $rootScope) ->
       scope = $rootScope.$new() 
@@ -22,23 +23,3 @@ describe "CheckoutCtrl", ->
     spyOn(order, "submit")
     scope.purchase(event)
     expect(order.submit).toHaveBeenCalled()
-
-  it "finds a field by path", ->
-    scope.checkout = 
-      path: "test"
-    expect(scope.field('path')).toEqual "test"
-
-  it "tests validity", ->
-    scope.checkout =
-      path: 
-        $dirty: true
-        $invalid: true
-    expect(scope.fieldValid('path')).toEqual false
-
-  it "returns errors by path", ->
-    scope.checkout =
-      path: 
-        $error: 
-          email: true
-          required: true
-    expect(scope.fieldErrors('path')).toEqual ["must be email address", "must not be blank"].join ", "