Ticket 49813 - Revised interactive installer
Description:
Removed some advanced settings from the install questions.
Moved the signal handlers to non-verbose runs.
Fixed some mixed case issues.
Added option for sample entries.
Added "interactive" argument, and restored "fromfile"
from "install".
https://pagure.io/389-ds-base/issue/49813
Reviewed by: mmuehlfeldrh & spichugi(Thanks!!)