Fix traceback in ipa-nis-manage.
The root user cannot use ldapi because of the autobind configuration.
Fall back to a standard GSSAPI sasl bind if the external bind fails.
With --ldapi a regular user may be trying this as well, catch that
and report a reasonable error message.
This also gives priority to the DM password if it is passed in.
Also require the user be root to run the ipa-nis-manage command.
We enable/disable and start/stop services which need to be done as root.
Add a new option to ipa-ldap-updater to prompt for the DM password.
Remove restriction to be run as root except when doing an upgrade.
Ticket 1157