There were no test for the arguments of compare_args_ipa() to check
if they were `None`, and they were used in contexts where `None`
would raise exceptions.

A test was added to return `False` if only one of the parameters is
`None`, and `True` if both are None.

Force plugins to execute using LANGUAGE='C'.

IPA translates exception messages and Ansible uses controller's
language to execute plugins on target hosts, and since ansible-freeipa
uses Exceptions messages to detect some errors and/or states, using any
language that has a translation for the required messages may cause the
plugin to misbehave.

This patch modifies ansible_freeipa_module in plugin/module_utils to
force the use of "C" as the language by setting the environment variable
LANGUAGE.

Tests were added to verify the correct behavior:

    tests/environment/test_locale.yml

The first test will fail, if ansible_freeipa_module is not patched, with
the message:

   host_show failed: nonexistent: host nicht gefunden

This issue is not present if the language selected does not provide
a translation for the eror message.

This patch does not fix encoding issues that might occur in certain
releases (e.g.: CentOS 8.3).

Fix #516

Tests: Change inline certificates to file lookups in ipaservice tests.

Tests for service certificates were still using pre-generated
certificate files. This patch uses the same approach as other tests,
it generates a certficate, when needed, and use file lookup.

Fix execution of Github Workflow to verify ansible docs.

The Github workflow Ubuntu images do not provide Ansible pre-installed
anymore, and this patch forces its installation through Python's pip.

Different jobs were created to test documentation with different
versions of Ansible, currently 2.9 and the latest available.

tests/azure: Set ANSIBLE_LIBRARY, deactivate NTP

In CentOS 8 and also Fedora the configuration and start of chrony
fails with

  Fatal error : adjtimex(0x8001) failed : Operation not permitted

For more information: https://bugzilla.redhat.com/show_bug.cgi?id=1772053

NTP will not be needed before a separate namespace is used for clocks.

The ANSIBLE_LIBRARY environment variable needs to point to molecule
directory.

Use ansible_facts variable

change variable in get_ipabackup_dir.yml and update README.md

Without this change the "Import variables specific to distribution"
tasks fail with "Could not find file on the Ansible Controller..."
on environments with inject facts disabled.

This changes the tests to run with ansible with
inject_facts_as_vars = false and fixes other roles and playbooks.

ipaclient: Do not fail on rmkeytab error #7

Due to commit f3f9672d527008dc741ac90aa465bac842eea08d (ipa-rmkeytab: Check
return value of krb5_kt_(start|end)_seq_get) in IPA 4.9.2 there is a new
error reported for ipa-rmkeytab in case of a non existing keytab file.
Using ipa-rmkeytab now results in the error #7 in this case.

The client role is using ipa-rmkeytab and needs to ignore error #7 also.

Fixes: #510 (ipa-client installation with OTP is failed with error code 7
             (keytab: /usr/sbin/ipa-rmkeytab returned 7))

example playbooks: ipaselfservice examples mentioned ipadelegation.

Fix ipapermission example playbooks

The example playbooks for ipaselfservice were using the wrong module,
ipadelegation. This patch changes the references from ipadelegation
to ipaselfservice on these example playbooks.

Also, the attributes were changed, so the same attributes are used
throughout the examples.

By using only one permission name, examples are easier to follow.

Example playbooks for ipapermission didn't have default password set.

ipapremission playbooks were using the invalid attribute `perm_right`.
The attribute was changed to `right`.

Fix container build.

Fixed names of member objects of sudorule

Building containers for CentOS and Fedora were failing due to image
download failure. The container build process was fixed by changing
the base images.

Without explicit installation, Ansible was failing to run on
Azure pipelines. This change explicitly install the latest
Ansible version available through `pip`.

In the near future, Github will use Ubuntu 20.04, for workflows, and
this change will keep the upstream CI environment consistent between
Github and Azure.

Fixed names of sudorule member objects, as they did not match the names provided by IdM.

From:			To:
member_host		memberhost_host
member_hostgroup	memberhost_hostgroup
member_user		memberuser_user
member_group		memberuser_group

Fixes: #500

Fix build-galaxy.sh execution and add running info.

This patch adds a missing argument to `read` and adds information
on which step is being executed.

A wrong variable was used inside of the while IFS read loops. This
prevented that the modules, playbooks, tasks, example playbooks and also
tests have been adapted for the galaxy release naming scheme.

Fix adding A/AAAA records with reverse in compatibility mode.

Improve ipapermission member management.

In `ipapermission` plugin, Some attributtes were not being managed
when `action: member` was enabled.

This patch enable member management for `right`, `rawfilter`,
`filter, and fixes management of `memberof`.

Fix issue #489

When adding A or AAAA records using the compatibility mode with
Ansible's community general plugin, the reverse (PTR) record was
added, but the A/AAAA record was not. This patch fixes the behavior.

Fix issue #491

Fix typo in README-permission.md

There is a typo "Eure" instead of "Ensure" in the rename task.