OO-798, OO-797, OO-796: update the webdav implementation based on Tomcat, make OpenOLAt work under root context, small refactoring of the dispatchers, push raw files dispatcher to its own servlet, implements Digest authentication...

no-jira: implements database monitoring for c3p0 without c3p0 dependency in classpath and for the tomcat embedded pool

OO-466: control indexer and notifications periodically jobs only via quartz scheduler, cron expression customizable, RESt API to trigger the two jobs

OO-449: first part of the implementation: remove smack libraries, refactor controller and unify them, implements messaging across the OpenOLAT event bus, implements administration part to enable chat...

OO-422: new layout for the administration tree, break the "system infromations" tabbed panel in single controllers under a main menu point, add a new system informations controller with some VIP values

OO-271: refactor the user session management, move the the logic in its own manager, persist the time out values, make the admin GUI a bit better

OO-291: implement the wizards to import/choose new member for courses, implement a flexi version of the suer search, implements a flexi version of the auto completer

OO-249: make the publish process robust to incoherence between run structure and editor tree model. Add unit tests for every case.

OO-340: enhance the rest api to monitor OpenOLAT, add more informations for memory, configuration for probes, dependencies infos...