Whitespace and typo fixes
Further whitespace fixes
Changed case of 'from' and 'send' to be more conformant
made subject a private ivar

Allows chaining of subject for easier manipulation of subject content on a per addressee basis
Fixed the SwiftMailer autoloader so it works in multi app scenarios (i.e. Yii Boilerplate)
minor code adjustment
Added Comments
Refactored send method adding additional logging capabilitys