Fix: Error raised when to/cc/from are string's and not arrays [issue#7]
Fix: Error raised when to/cc/from are string's and not arrays [issue#7]

Ensure mail.{from,to,cc} are converted to an `Array` using `Array.wrap` in view.
pragmaticly/mails_viewer,pragmaticly/mails_viewer,munky69rock/mails_viewer,munky69rock/mails_viewer,munky69rock/mails_viewer,pragmaticly/mails_viewer