WIP: Bugfix/5968 allow working le ssl on web mirror servers
requested to merge JanThiel/ispconfig3:bugfix/5968_allow-working-le-ssl-on-web-mirror-servers into develop
This is a majore refactoring of the LE functionality of ISPC. It is still a work in progress. The goal is to allow working LE SSL on Mirror Servers in a Multiserver Setup. Currently this only works on the mirrored server.
There is still a lot to do. But I believe early feedback makes the result much better :-)