OO-1342: refactor the loading mechanism for the custom media controller with a standard factory pattern

OO-568: fix memory leak, remove inner class to prevent big memory consumption if an other memory leak...

OO-372,OO-96: implements mappers which can be persisted on the database, implements the infrastructure, implements the scorm mapper and the file mapper for iframe to be serializable/deserializable,

--HG--
branch : bps