Fixed AuthHandler to not require write permission on user

gql.go

@@ -212,7 +212,7 @@ func AuthHandler(ctx *Context, server *GQLThread) func(http.ResponseWriter, *htt
         },
         new_user.ID(): LockInfo{
           Node: &new_user,
-          Resources: []string{""},
+          Resources: nil,
         },
       }), func(context *StateContext) error {
         server.Users[key_id] = &new_user

gql_test.go

@@ -143,7 +143,7 @@ func TestGQLDBLoad(t * testing.T) {
 }
 
 func TestGQLAuth(t * testing.T) {
-  ctx := logTestContext(t, []string{"policy"})
+  ctx := logTestContext(t, []string{"test", "gql", "policy"})
   key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
   fatalErr(t, err)