[Announce] Release of Puppet Development Kit v1.9.1

[Bryan Jen]

Hello Everyone,

Puppet Development Kit (PDK) provides integrated testing tools and a command line interface to help you develop, validate, and test modules.  We are excited to announce that PDK v1.9.1 is now available to download.

PDK v1.9.1 is a bugfix release and we've added some much needed fixes to the new YAML validator introduced in v1.9.0, as well as other a few quality of life fixes to `pdk convert` and PATH resolution on package installations. For more information please refer to the release notes. 

We'd also like to give a big shoutout to our open source community for their valuable contributions to the pdk-templates packaged in this release! A list of these contributions include:

• Adds option to allow more control over puppet-lint configuration [https://github.com/puppetlabs/pdk-templates/pull/181/files] 
• Update to pdk-templates documentation to describe `moduleroot_init` more accurately. [https://github.com/puppetlabs/pdk-templates/pull/188] 
• Updates gitlab-ci configuration to match travis-ci and appveyor, to run against latest puppets. [https://github.com/puppetlabs/pdk-templates/pull/189] 
• Adds ability to allow aliases in default fact files. [https://github.com/puppetlabs/pdk-templates/pull/190]

Next steps:

• Download PDK 1.9.1 for your operating system to get started.
• Or install or update to the latest PDK version via your native package manager!

Feedback is always appreciated and can be provided via the '#team-pdk' room in Slack or the PDK project in JIRA.

Regards,

Bryan Jen