Drop the /tags/{tag} route

fixes issue #305

routes.go

@@ -207,7 +207,6 @@ func RouteCollections(handler *Handler, r *mux.Router) {
 	r.HandleFunc("/page/{page:[0-9]+}", handler.Web(handleViewCollection, UserLevelReader))
 	r.HandleFunc("/tag:{tag}", handler.Web(handleViewCollectionTag, UserLevelReader))
 	r.HandleFunc("/tag:{tag}/feed/", handler.Web(ViewFeed, UserLevelReader))
-	r.HandleFunc("/tags/{tag}", handler.Web(handleViewCollectionTag, UserLevelReader))
 	r.HandleFunc("/sitemap.xml", handler.AllReader(handleViewSitemap))
 	r.HandleFunc("/feed/", handler.AllReader(ViewFeed))
 	r.HandleFunc("/{slug}", handler.CollectionPostOrStatic)