Release Name: 1.4.0

Notes:
ar_mailer is a two-phase delivery agent for ActionMailer.  Even delivering
email to the local machine may take too long when you have to send hundreds of
messages.  ar_mailer allows you to store messages into the database for later
delivery by a separate process, ar_sendmail.


Changes:
=== 1.4.0

* 1.8.7 and 1.9 STARTTLS compatibility, now uses smtp_tls gem for STARTTLS on
  1.8.6
* Fix 1.9 warnings