v0.2.1

This release features several new features, mostly related to the new features in PuppetDB 3.2 and one independent feature release.

• A new version comparison utility compares 2 values and returns -1 if the first value is less than the second. +1 if the first value is greater than the second, and 0 if the 2 values are equal
• A new field from the PuppetDB Nodes endpoint latest_report_hash is now available in the Node object
  ** The field latest_report_status is also used if available, but preserves noop event counts
• The code_id field from the Catalog endpoint is now available in the Catalog object (current unused in PuppetDB)
• The API now supports POST requests to the PuppetDB endpoint by means of a new keyword argument request_method (Defaults to 'GET')