Fix issue #771. Fix issue #769.
Fix issue #773
Fix issue #775 where InputfieldCKEditor could attempt to purify a null value when it shouldn't
Add @horst-n PR #770 with updates to Pageimage class
Update for @horst-n "hydra naming" for images fix.
Updates to SystemNotifications, including support for the "email" and "annoy" flags, and support for the "expires" property.
Add support for modal tabs. To use, edit any FieldtypeFieldsetTabOpen field (Setup > Fields), click the "details" tab and check the box to make the tab modal. When active, the page editor will edit that tab separately in a modal window. This can help to break up large page editor forms for increased performance. Consider this feature alpha test for now.
Remove reference to $page->summary in admin themes.
Fix issue with InputfieldSelector not loading datepicker
Updates to Lister and InputfieldSelector to enhance template context awareness