Fix both the service restart procedure and registration of old
pki-cad well known service name.
This patch was adapted from original patch of Jan Cholasta 178 to
fix ticket 4092.
https://fedorahosted.org/freeipa/ticket/4092
Option --configure-firefox configures firefox to use Kerberos
credentials within IPA domain
Optional option --firefox-dir=DIR allows to user to specify non-standard
path where firefox install directory is placed.
Part of ticket: https://fedorahosted.org/freeipa/ticket/3821