REST add a user search by external id, remove the login value of UserVO
if identity name are automatically generated

Login happens only with authentication informations, identity name is
now only used for legacy directory name. User name of authentication can
be changed. LDAP users can be imported with LDAP::ldapUid. Users can be
imported in courses, groups... with First name last name.

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

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-3492, OO-3493, OO-3494, OO-3496, OO-3497: infrastructure to export user data, export  portraits, notes, personal folder, calendars, subscriptions, delete calendars after usser deletion

OO-3296: don't upgrade manager roles if administrator and decouple every role, remove double update roles method...

OO-3297: refactor the user management to use organization for managing the roles instead of named security groups

OO-2515: save the master file untouched, deliver  more pixels for the print view of the members course element, add REST api methods to check if a particular size of portrait is available

OO-1770, OO-1769: allow pseudonym and guest posts, refactor the message model to hold only threads or messages of a unique thread in memory, minimize the number of joins on query, minimize the number of queries on peekview, remove buggy docking feature...

OO-1616: reduce the number of double call to the repository entry with the manager and after with the course

OO-1443: upgrade JUnit ( long overdue ), remove deprecated junit.* packages, fix some issues with order dependent tests, fix an issue with empty ClusterDoInSync

OO-990: mostly fix of the authoring GUI, and unit tests, integrate the demo course to the test resource

no-jira: fix the error in perf500 test in PropertyTest, remove reference to log4j logger in tests, remove duplicate closeSession in @after

OO-623: add fields for managed groups and repository entries, add a lifecycle DB object, enhance the REST API to search with externalId/externalRef...