Added 'connection_class' param to mail.global.php.dist file
Added 'conneciton_class' to MailOptions and created tests
Created TemplateOptions test case
Updated MailServiceFactory to use the 'connection_class' config param instead of hardcoding it
Added 'connection_class' documentation to README
fixes #26 Merge connection_class into develop
Updated classes and methods definitions to follow psr-1 and psr-2
Updated test classes and methods definitions to follow psr-1 and psr-2
Updated if and loop definitions to follow psr-1 and psr-2
Updated test if and loop definitions to follow psr-1 and psr-2
Updated code standard to PSR2 in code sniffer execution
fixes #29 Merge standards into develop
fixes #28 Creates MailServiceAwareTrait
Merge branch 'develop'