Use the official auth. user name of the LDAP authentication to propagate
user name changes to the OLAT fallback and WebDAV HA authentications

Adapt LDAP for auto/manual generated id. name, add unit tests for
special workflow (user which are created without authentication and get
LDAP token afterwards on login)

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

OO-2354: decouple attribute sued to search a user on the LDAP server from the user identifier and make it configurable, add embbeded LDAP server for unit tests

--HG--
branch : bps