Lots of goodies in this new version:

• counting of pending notification events
• counting of objects pending indexation
• counting of all asynchronous publishing events
• last but not least: ezfind monitoring (solr availability and solr indexed documents number)
• made it easier to add new handlers for specific extensions

And a couple of bugfixes for bonus: counting of sessions when those are not stored in db now returns -1; status of cluster db connection for ezdfs setups