Adds email attachment
Upgrade mailer to 2.3.1
Update mailer sample to add attachment
Added ability to put attachments with email
Standardizes the addAtchment methods and adds description and disposition parameters
Uses File type and case class, updates sample and adds a Scala controller example
"disposition" not "description"
Merge pull request #107 from Mogztter/issues/48

Resolves #48, Add email attachment method