Move pkg/util.Time to pkg/api/unversioned.Time

Along with our time.Duration wrapper, as suggested by @lavalamp.

pkg/api/helpers.go

@@ -23,11 +23,11 @@ import (
 	"strings"
 
 	"k8s.io/kubernetes/pkg/api/resource"
+	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/conversion"
 	"k8s.io/kubernetes/pkg/fields"
 	"k8s.io/kubernetes/pkg/labels"
 	"k8s.io/kubernetes/pkg/runtime"
-	"k8s.io/kubernetes/pkg/util"
 	"k8s.io/kubernetes/pkg/util/sets"
 
 	"github.com/davecgh/go-spew/spew"
@@ -67,7 +67,7 @@ var Semantic = conversion.EqualitiesOrDie(
 		}
 		return a.Amount.Cmp(b.Amount) == 0
 	},
-	func(a, b util.Time) bool {
+	func(a, b unversioned.Time) bool {
 		return a.UTC() == b.UTC()
 	},
 	func(a, b labels.Selector) bool {