Transfer metadata by copy / upload / download of zip files, unify copy
of streams, copy metadata during copy of courses, remove backwards
compatibility mode for import

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

status, all users, guests flags

notifications, statistics in assessment tool..., add missing roles to
max age policy configuration

to curriculum coaches and participants and assessment tool

make change in upgrader (12.x admin become administrator, sysadmin adn
roles manager, 12.x user manager become user managers and roles
managers)

organization, implement segment view for user visit card to better
inline in user management, implements several features for all roles
(allow enrollment, mandatory confirmation email by enrollment, allow
autocomplete, bulk changes...), add roles like lecture manager, quality
manager..., enhance the roles editor in user management

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-3489, OO-3490, OO-3491, OO-3495, OO-3499, OO-3500, OO-3501: finish the export process, delete files after zipping, send email... and more exported data