Logging API for inheritance is now parent -> child rather than child ->

parent.

urls.go

@@ -29,7 +29,7 @@ func NewURLMapper(conf *config.ServerConfig) *URLMapper {
 		Config:  conf,
 		Routes:  make(map[string]*Route),
 		Domains: make(map[string]*URLMapper),
-		logger:  logging.MustInheritLogger("urlmapper", "main"),
+		logger:  logging.MustInheritLogger("main", "urlmapper"),
 	}
 }