The underlying Dogtag issue (Dogtag ticket 1113) has been fixed.
We can therefore re-enable the uninstall option for ipa-kra-install.
Also, fixes an incorrect path in the ipa-pki-proxy.conf, and adds
a debug statement to provide status to the user when an uninstall
is done. Also, re-added the no_host_dns option which is used when
unpacking a replica file.
Part of the work for: https://fedorahosted.org/freeipa/ticket/3872
Reviewed-By: Petr Viktorin <pviktori@redhat.com>