fix many encoding errors on login and password

adding proper acl in test ldap configuration

fix test ldap content

adding ldap groups to test group management

removing crapy configuration file

better default configuration and content in test ldap

adding methods add_user and del_user ...

* adding add_user
* adding del_user
* adding unit tests
* adding configuration parameters for adding users

implementing search users ...

* adding search
* adding unit tests

adding test cases and reworking test env