Bug fixes

Sync with Messaging & Notifications 6.x-4.0-beta4
Moved Notifcations Files to its own project, http://drupal.org/project/notifications_files
Moved Content type extension into Notifications
Moved Custom Subscriptions into Notifications

Changes since beta3:
- Added some tests for anonymous subscriptions
- Added method has_condition() to Notifications_Subscription
- Added permission check for new subscriptions before submission
- Fixed issues with loading objects stored with the event
- Added hidden variables for step rows, step users, changed defaults
- Added Notifications_Message class, will handle some notifications specific properties of messages.
- New hook_notifications_message_alter()
- Fixed multiple "Call-time pass-by-reference has been deprecated", #782138,
- Fixed: editing custom subscriptions was failing
New features, code and performance improvements:
- Implemented unsubscribe page with full workflow for retrieving subscriptions
- Revamped admin settings, added some global subscription type options
- API improvement: Custom subscription with a blank field will now work.
- Improved subscription create / edit forms, with a reusable form function
- Added new subscriptions list form for user account pages.
- Reworked link generation. More robust signed links with timestamp and query string
- Added multilingual templates, passing language for message composition
- Added content type + author subscriptions and some shorthand functions.
- Added Custom Notifications and Content type extension modules
- New template testing feature (for node events) in Notifications Tools

Since beta3:
- Added views support for messaging_simple, by joshuajabbour, #791694
- Added some extenstions to Message class: get_method_params()
- Simplified and improved message sending workflow.
- Fixed multiple upgrade issues and bugs: #787304, #786844, #790984, #792850, #790226, #792756
New features:
- Revamped admin pages and options. Better settings, queue, log, etc
- Improved filtering. Added a new settings page for filters and new filter/format options

#765964 by Alessandro Balboni: Fixed import duplicate terms with full term mode.

New version of blogger will be soon available.
Security fixes

First alpha release of the DB Tuner.
I'm finding this module to be extremely handy :)