Print version string in installer

The server, replica, and client installer now print the current version
number on the console, before the actual installer starts. It makes it
easier to debug problems with failed installations. Users typically post
the console output in a ticket.

Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipaclient/install/client.py

@@ -61,6 +61,7 @@ from ipapython.ipautil import (
     user_input,
 )
 from ipapython.ssh import SSHPublicKey
+from ipapython import version
 
 from . import automount, ipadiscovery, timeconf, sssd
 from .ipachangeconf import IPAChangeConf
@@ -2015,6 +2016,10 @@ def install_check(options):
     global client_domain
     global cli_basedn
 
+    print("This program will set up FreeIPA client.")
+    print("Version {}".format(version.VERSION))
+    print("")
+
     cli_domain_source = 'Unknown source'
     cli_server_source = 'Unknown source'