* Introduce Kumpir, our new www server, add wordpress role
* move kumpir to services group, use safer distinction for ssl_cert location, reduce www playbook
* set server type to services
* fix typo
* rename service-wordpress to service-nginx-wordpress
* Add service-nginx-etherpad role
* Add ed25519 keypair for system_users when supported.
* Revert "Add ed25519 keypair for system_users when supported."
This reverts commit ffef991ca41185d19953b96439e80b1b9a6ba534.
* Change generated keys format to ed25519
* fix indention of nginx templates, reduce amount of needed tasks by adding extra_opts to unarchive, remove not needed mysql db tasks, make new acme_server default
* Change new default preference for acme servers, marking acme_server zuckerwatte deprecated soon.
* add jinja2 extension 'jinja2.ext.do' to ansible.cfg
* add host kichererbse.freifunk-mwu.de
* add new server_type 'mesh-service' and new host group 'ffmwu-mesh-services'
* use new loopback and anycast networks
* add role wireguard
* add role wireguard as dependency for roles network-routing + service-bird
* add playbook 'mesh-services'