ipaclient: New module ipaclient_setup_ntp, dropped ipaclient_ntp setting

The new module ipaclient_setup_ntp to configure and sync time with the NTP
server has been added. The irregular setting ipaclient_ntp has been removed.

The ipaclient_setup_ntp module is using either the new sync_time call or
for compatibility with older FreeIPA versions synconce_ntp.

The reference for ipaclient_ntp in REPLICA.md has been removed also.

This also fixes #55.

roles/ipaclient/tasks/install.yml

@@ -45,6 +45,17 @@
     state: absent
 
 - block:
+  - name: Install - Configure NTP
+    ipaclient_setup_ntp:
+      ### basic ###
+      ntp_servers: "{{ ipaclient_ntp_servers | default(omit) }}"
+      ntp_pool: "{{ ipaclient_ntp_pool | default(omit) }}"
+      no_ntp: "{{ ipaclient_no_ntp }}"
+      #force_ntpd: "{{ ipaclient_force_ntpd }}"
+      on_master: "{{ ipaclient_on_master }}"
+      ### additional ###
+      domain: "{{ result_ipaclient_test.domain }}"
+
   - name: Install - Test if IPA client has working krb5.keytab
     ipaclient_test_keytab:
       servers: "{{ result_ipaclient_test.servers }}"