+// Anonymous downloads
+//
+// Use the -allow-anonymous flag with an ARVADOS_API_TOKEN environment
+// variable to specify a token to use when clients try to retrieve
+// files without providing their own Arvados API token.
+//
+// export ARVADOS_API_TOKEN=zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
+// keep-web [...] -allow-anonymous
+//
+// See http://doc.arvados.org/install/install-keep-web.html for examples.
+//