http/auth.go: new user signup: support auto user dir creation (#788)
http/auth.go: new user signup: support auto user dir creation (#788)


hacdias/filemanager,hacdias/caddy-cms,hacdias/caddy-hugo,hacdias/filemanager,hacdias/caddy-hugo,hacdias/caddy-hugo,hacdias/filemanager,hacdias/caddy-hugo,hacdias/filemanager,hacdias/caddy-cms,hacdias/caddy-cms