Add acceptance tests for puppet-logstash module so that once the module
is applied we check if files were created, packages were installed and
Co-Authored-By: Bruno Tavares <firstname.lastname@example.org>
In anticipation of puppet 4, start trying to deal with puppet 4 things
that can be helpfully predicted by puppet lint plugins. Also fix lint
errors caught by the puppet-lint-absolute_classname-check gem and arrow
alignment errors not caught before.