Bump backup gem version to 4.1.5
  - Add `notify_by` knob to `resource/generate_model.rb` and `provider/generate_model.rb`
  - Update template to look for this and add notification support
  + Updated cookbook to exercise this knob (and others that don't)

Signed-off-by: Scott M. Likens <scott@likens.us>
update year
release 0.2.3