Fixed empty headers.
This branch is deprecated.
Update README.md
Encode recipient list.
Better recipient list detection.
Fixed test for the message id generator.
Using the Valid::email soft regex to match recipient list.
Fixed test for message id generator, the second part is base64_encoded.
First implementation of PHPMailer.
Improved testing using a sender provider.
Merge remote-tracking branch 'origin/3.3/develop' into 3.3/feature/PHPMailer

Conflicts:
	classes/Kohana/Mail/Sender.php
	tests/MailTest.php
Update README.md

Updates the documentation to specify support for PHPMailer.
Update README.md
Fixes PEAR mailer when using attachments.
Updates composer.json for PHPMailer.
All tests run for PHPMailer!
Exposing the PHPMailer instance.
Merge branch '3.3/feature/PHPMailer' of https://github.com/Hete/kohana-mail into 3.3/feature/PHPMailer
Skip tests with RECEIVER is not defined.
Merge remote-tracking branch 'origin/master' into 3.3/develop

Conflicts:
	README.md
	classes/kohana/model/mail.php
Added a $to variable in the sender.
Adds static function for headers encoding.
Merge branch '3.3/develop' into 3.3/feature/header-encoding

Conflicts:
	classes/Kohana/Mail/Sender.php
	classes/Kohana/Mail/Sender/Mail.php
	classes/Kohana/Mail/Sender/Mock.php
	classes/Kohana/Mail/Sender/PEAR.php
	classes/Kohana/Mail/Sender/PEAR/Mail.php
	classes/Kohana/Mail/Sender/PEAR/SMTP.php
	classes/Kohana/Mail/Sender/PEAR/Sendmail.php
	classes/Kohana/Mailer.php
	classes/Mail/Sender.php
	classes/Mail/Sender/Mail.php
	classes/Mail/Sender/Mock.php
	classes/Mail/Sender/PEAR.php
	classes/Mail/Sender/PEAR/Mail.php
	classes/Mail/Sender/PEAR/SMTP.php
	classes/Mail/Sender/PEAR/Sendmail.php
	classes/Mailer.php
Fixed most senders.
Merge branch '3.3/master' into 3.3/feature/header-encoding

Conflicts:
	README.md