/!\ not everything is working yet, and specially groupblogs are broken /!\
- renamed bridge api to use prefixed methods (e.g. psSubscribeToMany instead of subscribeToMany in PubSub)
- (xep-0060): try to find a default PubSub service, and put it in client.pubsub_service
- (xep-0060): extra dictionary can be used in bridge method for RSM and other options
- (xep-0060): XEP_0060.addManagedNode and XEP_0060.removeManagedNode allow to easily catch notifications for a specific node
- (xep-0060): retractItem manage "notify" attribute
- (xep-0060): new signal psEvent will be used to transmit notifications to frontends
- (xep-0060, constants): added a bunch of useful constants
- (xep-0163): removed personalEvent in favor of psEvent
- (xep-0163): addPEPEvent now filter non PEP events for in_callback
- (xep-0277): use of new XEP-0060 plugin's addManagedNode
- (xep-0277): fixed author handling for incoming blogs: author is the human readable name, author_jid it jid, and author_jid_verified is set to True is the jid is checked
- (xep-0277): reworked data2entry with Twisted instead of feed, item_id can now be specified, <content/> is changed to <title/> if there is only content
- (xep-0277): comments are now managed here (core removed from groupblog)
- (xep-0277): (comments) node is created if needed, default pubsub service is used if available, else PEP
- (xep-0277): retract is managed
- _() is no more installed in __builtin__
- instead, there is a new sat.core.i18n module
- added D_() method for deferred translation
- languageSwitch method allow to dynamically change translation language
- import gettext is tested against ImportError, and dummy methods are used when not available (mainly useful for Libervia)
- plugin for XEP 0060, 0163 and 0107, based on Wokkel's pubsub
- XEP 0115 plugin has been fixed, so generateHash can be called when features have changed (can be usefull to filter PEP)
