Merge remote-tracking branch 'origin/2.1' into 2.2

Conflicts:
	composer.json
License file moved to meta folder
Add LogglyHandler support, refs #4
Bump target release
Merge pull request #63 from hason/loggly

Add LogglyHandler support, refs #4
Merge pull request #60 from peterkokot/patch-1

License file moved to meta folder
Merge branch '2.2' into 2.3
Merge branch '2.3'
Add link to license
configure Swiftmailer handlers transports depending on the current container configuration
Merge pull request #66 from xabbuh/issue-65

configure Swiftmailer handlers transports depending on the current conta...
Respect mailer configuration option.

if hander type is swift_mailer mailer was being set to the default 'mailer'. Check if mailer is set in hander and override the default.
Merge pull request #69 from leevigraham/patch-1

Respect mailer configuration option.
Updated .travis.yml
Merge pull request #70 from h4cc/master

Added newer PHP Versions and HHVM to .travis.yml
added support for monolog's SyslogUdpHandler

especially useful if you plan to use Splunk or SplunkStorm
replaced tabs with spaces
Merge pull request #71 from IWAtech/master

added support for monolog's SyslogUdpHandler
added explicit swiftmailer flush after ConsoleEvents::TERMINATE
Merge pull request #73 from arodiss/send-error-logs-from-cli-arodiss

[SwiftMailer] send error log mails from CLI