Merge pull request 'view public org' (#167) from org-public into develop

Reviewed-by: 史梦园 <1729788216@qq.com>

routers/routes/routes.go

@@ -515,6 +515,9 @@ func RegisterRoutes(m *macaron.Macaron) {
 
 	m.Group("", func() {
 		m.Get("/:username", user.Profile)
+	}, ignSignIn)
+
+	m.Group("", func() {
 		m.Get("/attachments/:uuid", repo.GetAttachment)
 	}, reqSignIn)