Handle K8s middleware NS record (#662)

* commit for testing in cluster

* commit for testing in cluster

* refactor and add ns.dns record

* Release 007

* reduce heap allocations

* gofmt

* revert accidental Makefile commits

* restore prior rcode for disabled pod mode

* revert Makefile deltas

* add unit tests

* more unit tests

* make isRequestInReverseRange easier to test

* more unit tests

* addressing review feedback

* commit setup.go

middleware/kubernetes/lookup.go

@@ -12,7 +12,7 @@ import (
 )
 
 func (k Kubernetes) records(state request.Request, exact bool) ([]msg.Service, error) {
-	r, err := k.parseRequest(state.Name(), state.Type())
+	r, err := k.parseRequest(state.Name(), state.QType())
 	if err != nil {
 		return nil, err
 	}