* Added the possibility to define rules for remote addresses
* Added change in changelog
* Added check for X-Real-Ip and X-Forwarded-For when checking for remote address filtering
* cmd/anubis: refine IP filtering logic
* Optimize the configuration so that the IP trie is created once at
application start instead of dynamically being created every request.
* Document the changes in the changelog and docs site.
* Allow pure IP range filtering.
* Allow user agent based IP range filtering.
* Allow path based IP range filtering.
* Create --debug-x-real-ip-default flag for testing Anubis locally
without a HTTP load balancer.
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Co-authored-by: Xe Iaso <me@xeiaso.net>
