s1728: add the entryDN as a principal when augmenting a users Subject.

projects/cadcAccessControl-Server/build.xml

...rol-Server/src/ca/nrc/cadc/ac/server/UserPersistence.java

...ontrol-Server/src/ca/nrc/cadc/ac/server/ldap/LdapDAO.java

...ol-Server/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAO.java

...r/src/ca/nrc/cadc/ac/server/ldap/LdapUserPersistence.java

...er/src/ca/nrc/cadc/ac/server/web/users/GetUserAction.java

...ontrol-Server/src/ca/nrc/cadc/auth/AuthenticatorImpl.java

...rver/test/src/ca/nrc/cadc/ac/server/ldap/LdapDAOTest.java

...test/src/ca/nrc/cadc/ac/server/ldap/LdapGroupDAOTest.java

.../test/src/ca/nrc/cadc/ac/server/ldap/LdapUserDAOTest.java