DOC: FAQ or Troubleshooting for setup

Is there a place to add FAQ entries for the installation.

Here, some fragments that might be interesting to add:

Opening a server on ports 443 and 80

Running CaosDB as a normal user fails for ports 443 and 80 which cannot be opened by normal users by defualt.

Solutions:

• Use authbind
• Use cap net bind service (untested)
• Use iptables (documentation needed)

See https://superuser.com/questions/710253/allow-non-root-process-to-bind-to-port-80-and-443 for the first two options.

Error that XSLT parsing failed

Possibly it was forgotten to run make in webui subdirectory.