anchor.diff:        {
            "LDAP_ADMIN_USER": "ldapadminuser",
            "LDAP_ADMIN_PASSWORD": "ldapadminpassword",
  -         "USER_NAME": "newusername",
  +         "USER_NAME": "usertodelete",
         }
   + Response 204 (application/json)
   
  
positive.code:          "LDAP_ADMIN_USER": "ldapadminuser",
           "LDAP_ADMIN_PASSWORD": "ldapadminpassword",
           "USER_NAME": "ldapadminuser",
           "USER_DATA": { "USER_EMAIL": "user@domain.org",
                          "USER_DESCRIPTION" "new user description",
                          "GROUP_NAMES": ["NewGroup1", "NewGroup2"]
                        }
  
negative.code:       {
           "details": [
                        [ "baseDN": { "uid": [ "useruid"],
                                      "mail": [ "usermail" ],
                                      "cn": [ "usercn" ],
                                   } ],
                        [ "baseDN": { "uid": [ "useruid2"],
                                      "mail": [ "usermail2..." ],
                                      "cn": [ "usercn2..." ],
                                   } ]
                      ]
        }
  