* develop-olympus:
[ticket/10029] Use $_SERVER['SERVER_PROTOCOL'] for determining HTTP version.
[ticket/9805] Setup security repository for developers.
[ticket/9805] Move check lower down.
[ticket/9805] Better support for already existing repositories.
[ticket/9805] Add dry-run option.
[ticket/9805] Use getopt(), add a few options, extend show_usage().
[ticket/9805] Script for easily cloning a whole github network.