bug report #535452 by joachim,franz: Disabled Plain Text option for Simplenews.
Fixed emogrify call, was using wrong variable
bug report #605212 by verot,franz: Tokenize the header and footer
bug report #373915 by kenorb,franz: duplicated body tags
#567604 by hanoii. proper handling of hook_mail_alter()
#346264 by hopfrog, kenorb: Fixed the "missing argument 3" bug.
Adding pt-pr translation