User Verwaltung"" hinzugefuegt.
error und info logger
Menue in Testklasse
logger, passwdfield, user mit name statt uuid
Tafelserver anlegen geaendert
Merge remote-tracking branch 'origin/dkadio'

Conflicts:
	src/client/ClientMain.java
Merge remote-tracking branch 'origin/chdrost'

Conflicts:
	src/interfaces/ClientVerwaltungInterface.java
	src/tafelserver/Testklasse.java