OpenPSA 9.0 RC 1

• new, fullCalendar-based interface for calendar browsing
• rewritten Watcher service, based on Symfony Event Dispatcher
• performance improvements in for working with large object trees in Asgard
• improved PHP 5.5 compatibility
• initial support for running on midgard-portable, improvements for CLI mode and Asgard shell functionality
• replaced PEAR diff library with phpspec/php-diff, and the PEAR Mail packages with Swiftmailer
• the usual pile of refactorings, cleanups and usability improvements