Log Message:
Update ruby-mail package 2.2.19, latest 2.2.x series.

== Tue Apr 26 09:49:54 UTC 2011 Mikel Lindsaar <mikel@rubyx.com>

* Update activesupport require to use inflector - closes #217

== Tue Apr 26 06:18:19 UTC 2011 Mikel Lindsaar <mikel@rubyx.com>

* Fixed charset warning issue with multipart messages - https://github.com/arvindsv
* Version bump to 2.2.18 and gem release

== Wed 20 Apr 2011 15:16:20 UTC Mikel Lindsaar <mikel@rubyx.com>

* Mail::Field.new("Subject: foobar", 'iso-2022-jp') does not set \ 
charset - https://github.com/yalab

== Tue Apr 19 00:20:54 UTC 2011 Mikel Lindsaar <mikel@rubyx.com>

* Fixed an exception with nil in Reply-To and References field - \ 
https://github.com/dcormier
* Version bump to 2.2.17 and gem release

== Sat Apr 16 12:57:27 UTC 2011 Mikel Lindsaar <mikel@rubyx.com>

* Added support for open SMTP connections and returning the Mail server's \ 
response - https://github.com/spiegela
* RE: not appended to subject when replying to a reply - \ 
https://github.com/prateekdayal
* Support not ascii compatible charset mail send - https://github.com/yalab
* Fix for issue 208 "mail.body after mail.add_file truncates message \ 
body" - https://github.com/glongman
* Handle bad subject encoding (or ":invalid => :replace" is \ 
ineffective for utf-8 to utf-8 encoding) - https://github.com/choonkeat
* Handle blank Received header field - https://github.com/bcantin
* Handle part with missing content type - https://github.com/bcantin
* Handle a "<>" Return field - https://github.com/bcantin
* Performance improvements for 1.9 - https://github.com/nobu
* Fix heavy CPU issues when messages are missing a space - https://github.com/scsmith
* Tighten up allowed encodings - https://github.com/scsmith
* Added to_yaml & from_yaml (as well as to_hash & from_hash) - \ 
https://github.com/srushti
* Fix up some comments - https://github.com/takahashim
* Version bump to 2.2.16 and gem release