From IPA version 3.0, the persistent search is a preferred mechanism
to for DNS zone list management. It will be also a requirement for
several bind-dyndb-ldap features, like SOA serial automatic updates
or DNSSEC.

Make this mechanism default in ipa-server-install and ipa-dns-istall.

https://fedorahosted.org/freeipa/ticket/2524

When IPA package is being updated, some of the configuration files
are also updated. Sometimes it may be useful to store upgrade meta
information for next package upgrades. For example an information
that some config file was already updated and we don't want to
update it again if user purposedly reverted the change.

This patch adds a new StateFile in /var/lib/ipa/sysupgrade which
is capable of holding this information. New sysupgrade.py module
was created to provide simple API to access the upgrade state
information.

All of our install/admin scripts had a try/except block calling the
main function and handling common exceptions. These were copy-pasted
from each other and modified to various levels of sophistication.
This refactors them out of installers to a single function, which
includes a final pass/fail message for all of the scripts.

Non-install scripts that set up the same log handler levels for
stderr and log file are not changed, as it's not possible to log
to only the logfile without changing the logger configuration.

https://fedorahosted.org/freeipa/ticket/2071

We don't have a specific requires on the policycoreutils package. It
gets pulled in as a dependency on the server anyway, but checking
there is like a belt and suspenders.

On the client we don't require SELinux at all. If SELinux is enabled
however we need to set things up properly. This is provided by the
policycoreutils package so fail if that isn't available.

https://fedorahosted.org/freeipa/ticket/2368

Output message of the 'read_domain_name' function in ipa-server-install
was reworded.

https://fedorahosted.org/freeipa/ticket/2704

Wrap printing exceptions in unicode() to do Gettext conversion.

https://fedorahosted.org/freeipa/ticket/2196

pkisilent does not handle these properly.

https://fedorahosted.org/freeipa/ticket/2675

IPA has some unused code from abandoned features (Radius, ipa 1.x user
input, commant-line tab completion), as well as some duplicate utilities.
This patch cleans up the utility modules.

Duplicate code consolidated into ipapython.ipautil:
    {ipalib.util,ipaserver.ipautil,ipapython.ipautil}.realm_to_suffix
    {ipaserver,ipapython}.ipautil.CIDict
            (with style improvements from the ipaserver version)
    {ipapython.entity,ipaserver.ipautil}.utf8_encode_value
    {ipapython.entity,ipaserver.ipautil}.utf8_encode_values

ipalib.util.get_fqdn was removed in favor of the same function in
ipaserver.install.installutils

Removed unused code:
    ipalib.util:
        load_plugins_in_dir
        import_plugins_subpackage
        make_repr (was imported but unused; also removed from tests)

    ipapython.ipautil:
        format_list
        parse_key_value_pairs
        read_pairs_file
        read_items_file
        user_input_plain
        AttributeValueCompleter
        ItemCompleter

    ipaserver.ipautil:
        get_gsserror (a different version exists in ipapython.ipautil)

ipaserver.ipautil ended up empty and is removed entirely.

https://fedorahosted.org/freeipa/ticket/2650

Global DNS configuration is a nice tool to maintain a common DNS
settings stored in LDAP which are then used for all enrolled IPA
servers. However, the settings stored in LDAP override local
settings in named.conf on DNS servers.

This patch adds more information about global DNS configuration
options in install scripts and DNS module help.

https://fedorahosted.org/freeipa/ticket/2525

Server framework calls acutil.res_send() to send DNS queries used
for various DNS tests. However, once acutil is imported it does
not change its list of configured resolvers even when
/etc/resolv.conf is changed. This may lead to unexpected
resolution issues.

We should at least reload httpd when we change /etc/resolv.conf to
point to FreeIPA nameserver to force a new import of acutil and
thus workaround this bug until it is resolved in authconfig.

https://fedorahosted.org/freeipa/ticket/2481