With these settings for server, replica and client it is possible to skip
package installation. This is for example useful if the packages are already
installed. The settings default to yes
The setting ipareplica_no_package_install has been removed.
A new section has been added to configure firewalld automatically as the
last step of the server installation.
A new switch has been added to be able to turn firewalld configuration off:
ipaserver_no_firewalld. It defaults to no.