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-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-406: implements the skeleton for the OpenMeetings rooms, course building blocks, group tools, connection via SOAP to OpenMeetings...

no-jira: fix javassist maven dependency (via hibernate-core and not explicitly), limit the amout of text read by the TextDocument  indexer

OO-377: implements pending state or reservation for groups and repository entry access to participants

OO-354: enhance the pom.xml to run the unit tests on Oracle, update the TESTING.README.LATEST with tips about Oracle

OO-360, removing warning ifan IM listener is not found (it can happen), remove support for SSL connection to openfire to save memory

OO-280: cleanup pom.xml, remove unused profils, remove profiles for selenium 1, remove unused plugins

OO-280: build the infrastructure for Selenium 2, Arquillian and a managed Tomcat 7.0, remove old selenium 1 tests, remove profile of Firefox...

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branch : 80-patch