(maint) - modulesync 1d81b6a

Make management of /etc/pki directory optional. Added comment explaining the manage_pki_dir option. Added spec tests for manage_pki_dir parameter.

While the EL6 packages work for Amazon Linux (https://github.com/puppetlabs/puppetlabs-puppet_agent/blob/1.4.1/manifests/osfamily/redhat.pp#L9-L10), I get this error when ensuring a package version.

```
Error: Could not update: Failed to update to version 5.1.0-1.el2017, got version 5.1.0-1.el6 instead
Error: /Stage[main]/Puppet_agent::Install/Package[puppet-agent]/ensure: change from '5.1.0-1.el6' to '5.1.0-1.el2017' failed: Could not update: Failed to update to version 5.1.0-1.el2017, got version 5.1.0-1.el6 instead
```

This PR fixes that.

While we support Puppet 3, we can't use puppetlabs-translate as it uses
Puppet 4 functions. Disable the i18n check in PuppetLint that requires
messages to be decorated with the translation function.

(maint) Disable PuppetLint i18n check

(MODULES-6095) Review docs for release.

Merge 1.5.0 release back into master

(maint) - modulesync 384f4c1

* increase max. version number of dependency puppetlabs/apt to 4.1.0
* add testfacts for compatibility to puppetlabs/apt >= 3.0.0

(maint) modulesync cd884db Remove AppVeyor OpenSSL update on Ruby 2.4

(PE-23542) Add OSX 10.13

(PE-23558) Add RHEL 7 AARCH64

Previously it was possible to get into a strange race condition where the MSI
was able to propertly stop the MCollective service prior to upgrade.  This
commit attempts to stop the mco service prior to the MSI being invoked, giving
the service more time to stop correctly.

Previously it was possible to get into a strange race condition where the MSI
was able to propertly stop the Puppet Agent service prior to upgrade.  This
commit attempts to stop the puppet service prior to the MSI being invoked,
giving the service more time to stop correctly.

Previously it was difficult to debug failed upgrades as it was not possible to
know what rights the installation user had at install time.  This commit logs
the current user's rights prior to the upgrade.

Previously many tests in classes/puppet_agent_spec.rb were not running on
Windows due to a bug in rspec-puppet-facts.  However in v1.9.0 of the gem it
now adds better windows support, but the puppet_agent_spec.rb began running
tests for Windows which then failed.  This commit modifies the test fixtures and
logic to only test things which make sense on Windows.

Also voxpupuli/rspec-puppet-facts#68 meant that the
order of the testing had to be determinstic, ensuring that Windows platforms
were tested last.

(MODULES-6686) Fix puppet_agent_spec tests for Windows

Previously the module was tested in both Travis and private Jenkins CI systems
however this is no longer required.  This commit moves the spec tests that
are tested in Jenkins and moves them to Travis;
* Only test puppet agent and ruby combinations that are installed in AIO installs
* Split out validate and lint checking to only happen once per job not for all
  matrix cells
* Now tests on Puppet latest 3.8, first 4.0, latest 4.7.x, 4.10.x and 5.x gems
* The Hiera Gem needs to be set on Puppet 4.7.1 as it has incompatibilites with
  later hiera gem versions (4.4.2)
* Brings the Travis CI config file into a similar format as that used by the PDK
  to make migration easier later.
* The Travis file needs to remain unmanaged until it supports setting the
  bundler_args setting

(MODULES-6688) Use travis for CI testing, instead of Jenkins

 (PE-23563) Stop MCO and Puppet prior to MSI install

The previous regex used a character class instead of a union to
match the major Mac OSX product version, which would match values
such as "10.14", "10.15". This meant that the puppet_agent module
would think these are supported platforms, and proceed further with
the installation (failing at a different point, which would produce
a harder-to-read error message). This commit fixes things so that
non-supported Mac OSX platforms correctly fail in the osfamily::darwin
class with a readable error message.

(PA-1887) Fix osfamily::darwin OSX version regex

…#268)"

This reverts commit 3929f0b.

Previously the CA Certs were not required to be explicitly installed however
the forge appears to be using newer certificates now which are not in the
default OpenSSL pack on Windows nodes.  This commit uses the install_ca_certs
helper to install the CA Certs prior to downloading modules from the forge.

Previously the puppetlabs-inifile module was still compatible with Puppet
3.8, however as of 2.1.1 the syntax changes are not able to be used with older
ruby (1.8) which is common with older Puppet versions.  This commit pins the
inifile module version and updates the test fixtures.

Previously the acceptance tests would use the latest versions of dependant
modules, however due to supporting Puppet 3.8 this is no longer possible.  This
commit pins the acceptance module versions to that specified in the metadata
json file.

Version 2.6.10 introduced an error that was failing on Puppet gem 4.0.0.  This
commit pins rspec-puppet to 2.6.9.  This should be removed once the error
is fixed.

(MODULES-6717) Configure 1.x branch for last 3.8 compatible release

This commit prepares the module for a v1.6.0 release

This is the last release that will be compatible with Puppet 3.x.

(MODULES-6832) Prepare for v1.6.0 release