Allow dot in function name

This patch enables the use-case for multiple namepsaces by
allowing a dot to be used in the function name.

dep has been run to update OpenFaaS projects and also to
prune unused files.

Tested by doing a build.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

gateway/vendor/github.com/openfaas/nats-queue-worker/handler/handler_test.go

@@ -1,40 +0,0 @@
-package handler
-
-import (
-	"os"
-	"strings"
-	"testing"
-
-	"github.com/openfaas/nats-queue-worker/nats"
-)
-
-func Test_GetClientID_ContainsHostname(t *testing.T) {
-	c := DefaultNATSConfig{}
-
-	val := c.GetClientID()
-
-	hostname, _ := os.Hostname()
-	encodedHostname := nats.GetClientID(hostname)
-	if !strings.HasSuffix(val, encodedHostname) {
-		t.Errorf("GetClientID should contain hostname as suffix, got: %s", val)
-		t.Fail()
-	}
-}
-
-func TestCreategetClientID(t *testing.T) {
-	clientID := getClientID("computer-a")
-	want := "faas-publisher-computer-a"
-	if clientID != want {
-		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
-		t.Fail()
-	}
-}
-
-func TestCreategetClientIDWhenHostHasUnsupportedCharacters(t *testing.T) {
-	clientID := getClientID("computer-a.acme.com")
-	want := "faas-publisher-computer-a_acme_com"
-	if clientID != want {
-		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
-		t.Fail()
-	}
-}