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.

email change

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: implement inheritance of specific roles in an organization structure (user manager, learn resource manager)

OO-3297, OO-3301: refactor security group management operations in its own DAO, implement isInOrganisation mfunction for course expert rules

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-2172: refactor the spring configuration to be more Spring 4 friendly, remove the cycle generate by the properties injection, deployment of course and user in a separate module

OO-1739: backport the delete button in file element and use it in user profil for the avatar, in the resource description and in the catalog entry editor

OO-1561 replace lang parameter in pwd change and registration email with language parameter to not collide with html entity ⟨

OO-1341; make the extension of the image mandatory, needed by the java scaling service to discover the type of the image

OO-1278: the change executor must be the first in the chain of login interceptors (it don't need any GUI)

OO-1181: fix some issues with the ordering of the user property across different groups and prevent properties to disappear

OO-1068: split profile in two segments for the profile itself and the home page settings, add a preview, merge the profile and the portrait in the same controller