Merge pull request #1 from ke4/master

Using Array and Hashes with Mustache
add logger to email
[fix #51632427] sending e-mail only at order creation
Merge pull request #4 from ke4/51632427_fix_email-notifier_send_email_when_order_is_in_complete_state

51632427 fix email notifier send email when order is in complete state