Move the functions of OlatRootFile and OlatRootFolder to the Local
implementations to simplify the use of VFS, implements factory methods
in VFSManager, reduce the number of call to meta informations in folder
listing

Fix deletion of metadata, fix left files by restore of versioned files,
implement restore of metadata of deleted versioned files, implements an
upgrader to delete metadata of deleted resources, courses, groups,
forums, users and temporary uploaded files

security callback

of administrator role in organisation tree, enhance UI in user
management and fix some permission issues to edit invitee and guest,
remove admin by-pass for the full text search...

OO-3295,OO-3538: replace Jersey with Apache CXF (JAX-RS 2.1, Spring integration), remove the JAX-WS stack from Sun, update support for OpenMeetings (patch S. Clemenz)

OO-3312: hide the lost+found in the document pool site, exclude competence gained from a taxonomy level with the identifier lost+found or orphan-fach (inclusive parent line) to access the document pool site

OO-3237: root of document pool tree use the same label as the site, remove hard coded title of the infos page, add warning if no info page configured

OO-3213	: implement expiration date in taxonomy, check the managed flag in the user's list of competence, persist preferences of the different tables in taxonomy module

OO-3153: check the competence and type configuration to access the document pool, remove the security callback, implements enable/disable flags in the taxonomy module and the document pool module

OO-3055: refactor select taxonomy level to make it more generic, rebuild REST API documentation, tweaks e-Assessment level in administration

OO-3055: enhance REST documentation for document pool, implement back button in document pool administration and taxonomy administration

OO-3055: add basic support for relations in taxonomy level, fix a case of focusing in tree table, fix reverse wording in taxonomy overview...

OO-3055: remove library flag in taxonomy, move the info page to the document pool module, tabbed the overview of taxonomy level...

OO-3055: confirm delete type, update panels after identifier changed, fix rs in templates directory, reactivate full text search for others indexers...

OO-3055: add lost + found, refactor the notifications and full text search to link to the document pool in general