messaging 6.x-1.2-beta1

New features and lots of bug fixes. Changes since 6.x-1.1
- Added PHPMailer settings and debug settings, #358386 and #248743
- Moved send method settings to its own tab, and moved mail functions to messaging.mail.inc
- Defined some new constants for sending method types, updated plug-ins
- Updated token_logic support, http://www.developmentseed.org/blog/2009/mar/25/tokenlogic-helps-messagi...
- Fixed issue with messaging logs not being deleted.
- Updated Privatemsg integration, #340676
- Fixed: Two 'Thread' subscription types on UI settings, #409084
- Fixed: cron - mimemail parameters issue, by scottrigby, #382576
- Added logging interface (messaging_log)
- Improvements for messaging_twitter and messaging_debug
- Messaging method list only displays the ones available for the user.
- Fixed SMS subject & body formatting issues, #374903
- Reworked message templates administration indicating fallbacks and added better help texts.