OO-606: don't return "WWW-Autorization" if authenticated, doesn't allow BitKinex in OLATServlet, update cache config converter...

OO-449: move from ehcache to infinispan to have access to a distributed cache in a cluster environment, fix some issues with a cluster environment

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-422: first step of the rearrangement of the administration site, breaks the system informations in multiple menu points, rewrite some controllers in a more modern way

OO-291: first step: move business gourp manager to a business group service, remove dependency to the context...

--HG--
branch : bps