Adds support manual config cache refresh by admins via request param
Adds support manual config cache refresh by admins via request param

Being an admin add "refresh_config_cache" as request parameter and the
config cache will be refreshed.

Signed-off-by: Michael Tekkla Zorn <50f195679bf77bf0955b9c2832e55e1d0c47d29c@tekkla.de>
tekkla/TekFW,tekkla/TekFW