fixed wrong usage of getMasterserver_admin_faction()

There are still problems left to identify the place in the code where the new 
settings  containing the admin state are set on the client making him the new 
headlessAdmin.
fixed a crash for a regular server when a client quits and gets replaced by AI
A script to start multiple headless servers at once

This script will need some improvements but is meant as a start. 
Its used to start multiple headless servers at once because the new headless 
system allows many more headless servers on one machine. 
We will need to find a way to stop those servers in a proper way.
git test