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.

Configuration and implementation to allow the users to request the
deletion of their account if they don't accept the disclaimer or in
their settings under the disclaimers.

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-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-3288, OO-3297, OO-3291: add model for organisations and curriculums, add curriculum manager global role

OO-2429: move the foreign key from identity to user, remove double mapping of identity, add more unit tests for invitation, unify the methods to create the user and identity

OO-1362: make the guest login, links for guests and invitation login configurable in the administration GUI

OO-1228: reduce sleep time in unit tests, update undertow, remove some translator error in course wizard, make that the unit tests for the identity power search really test and fail if something goes wrong...

OO-857: check null in the method without assert exception, simply return false, no identity, no permission

OO-753: remove the optimistic locking from SecurityGroupMemebership and make almost all field immutable

After merge: break dependency in the full text search beans, reduce the last generated by the tests of the coaching manager on MySQL 5.1...