be less picky about account folder names

It now just checks for "something-something".
increase build number
Merge branch 'pjr'
Various Improvements

* Better handling of the MailCore framework (no need for hard coded paths)
* Send email from the email address specified in the 'Email Options' pref
* Better logging when a keychain item cannot be found
* Switch to ARC
Version bump
Merge from upstream