[feature/module_services] Move poll module to module services
[feature/module_services] Move random_member module to module services
[feature/module_services] Move recent module to module_services
[feature/module_services] Move topposers to module services
[feature/module_services] Move user_menu to module services
[feature/module_services] Move welcome module to module services
[feature/module_services] Move whois_online to module services
[feature/module_services] Get rid of compatibility with old modules