4.4.0

Features

• The experimental command product-diff has been added.
  It gets the manifest diff for a specified set of products.
  This might be useful as a sanity review before apply-changes;
  see the detailed documentation for details/provisos.
• config-template now includes the option to use a local product file with --product-path.
  This resolves issue #413.
• apply-changes can for recreate the VMs that will apply with --recreate-vms.
  This is useful for the three-Rs of security,
  to ensure the repaving.

Bug Fixes

• The environment variable OM_VARS_ENV was not enabled on all commands that allows --vars-env.