-c option (php.ini) before the last command (router)

At least on some versions of php-cli you need to specify the -c option _before_ the router command.
This works as expected:
`php -S localhost:8080 -c php.ini router.php`

The current behaviour, doesn't works (php.ini file is ignored):
`php -S localhost:8080 router.php -c php.ini`

This patch ensures that the router option is the last.