authenticate: use gRPC for service endpoints (#39)

* authenticate: set cookie secure as default.
* authenticate: remove single flight provider.
* authenticate/providers: Rename “ProviderData” to “IdentityProvider”
* authenticate/providers: Fixed an issue where scopes were not being overwritten
* proxy/authenticate : http client code removed.
* proxy: standardized session variable names between services.
* docs: change basic docker-config to be an “all-in-one” example with no nginx load.
* docs:  nginx balanced docker compose example with intra-ingress settings.
* license:  attribution for adaptation of goji’s middleware pattern.

internal/templates/templates_test.go

@@ -2,11 +2,12 @@ package templates // import "github.com/pomerium/pomerium/internal/templates"
 
 import (
 	"testing"
-
-	"github.com/pomerium/pomerium/internal/testutil"
 )
 
 func TestTemplatesCompile(t *testing.T) {
 	templates := New()
-	testutil.NotEqual(t, templates, nil)
+	if templates == nil {
+		t.Errorf("unexpected nil value %#v", templates)
+
+	}
 }