Revert "changed sso to new service url sso.tu-darmstadt.de"
Revert "changed sso to new service url sso.tu-darmstadt.de"

This has to be tested more, please look at branch new_sso_url

This reverts commit 2d8a2e0cebf11132cd123cb87ac9b3e1f0034e85.

d120/pyophase,d120/pyophase,d120/pyophase,d120/pyophase