Bugfix:
On closing MP Configuration the missing connection to the TV Server is only reported if the hostname was modified or explicitly checked as invalid. Otherwise the gentle.config file is updated silently and if this fails (due to the non reachable TV Server) only a warning log is produced.
Merge remote-tracking branch 'remotes/origin/BUG-4443-Configuration_Hostname_is_reset_if_TV_server_is_not_reachable'