Switch from ThirdPartyResources to CustomResourceDefinitions (#381)

Switch Fission's storage over to the new CustomResourceDefinitions, from the deprecated ThirdPartyResources. This allows us to be compatible with Kubernets 1.8 and onwards.

This also adds a CLI tool for dumping state from an old fission version and restoring state into new CRDs.

The storage service is unaffected by this change.

fission/timetrigger.go

@@ -26,7 +26,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"github.com/fission/fission"
-	"github.com/fission/fission/tpr"
+	"github.com/fission/fission/crd"
 )
 
 func ttCreate(c *cli.Context) error {
@@ -45,7 +45,7 @@ func ttCreate(c *cli.Context) error {
 		fatal("Need a cron spec like '0 30 * * *', '@every 1h30m', or '@hourly'; use --cron")
 	}
 
-	tt := &tpr.Timetrigger{
+	tt := &crd.TimeTrigger{
 		Metadata: metav1.ObjectMeta{
 			Name:      name,
 			Namespace: metav1.NamespaceDefault,