fixing samba DC deployment for newer version of samba

more cleanup in test_env deploy.sh

trying to cleanup travis build env

adding proper acl in test ldap configuration

fix test ldap content

adding ldap groups to test group management

removing crapy configuration file

trying to fix /etc/hosts

fix /etc/hosts for test env

better default configuration and content in test ldap

Merge branch 'master' of https://github.com/kakwa/ldapcherry

adding creation of a ext4 partition

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