Merge branch 'release/1.6.0' into develop

* release/1.6.0:
  Set version to release numbers.
  Remove some comments.
  Make this build a beta version.
  Add more information to the system info call.
  Update UUIDs
Merge branch 'refs/heads/master' into develop

* refs/heads/master:
  Add the built product.
  New UUIDs list.
  Update UUIDs
Merge branch 'refs/heads/master' into develop

* refs/heads/master:
  Update UUIDs.
  Update which config file is used.
  Put the configs back from a public location.
  Revert "Update sparkle project and move configs to a submodule repo."
  Update sparkle project and move configs to a submodule repo.
  Update LKKit.
  Add changes for the scripts.
Update UUIDs
Merge branch 'master' of github.com:lksoft/MailPluginManager

* 'master' of github.com:lksoft/MailPluginManager:
  Update the UUIDs