The roles ipaconf, krb5 and sssd have been using GPLv2+ in the license meta
information while everything else is GPLv3. Therefore the license meta
information has been changed to GPLv3.
New variables have been added (undefined by default):
krb5_dns_canonicalize_hostname
krb5_pkinit_anchors
krb5_pkinit_pool
These are set according to the ipa version requirements. See
roles/ipaclient/tasks/install.yml