Fixes #5146 - Use 'rudder' as default policy_server to prevent error messages without policy_server.dat file
Merge pull request #442 from nperron/bug_5146/dev/Fix_error_messages_during_start_of_cf_serverd_without_policy_server_dat

Fixes #5146 - Use 'rudder' as default policy_server to prevent error messages without policy_server.dat file