adding another samba package in test env

adding another dependency for the samba/ad test

fixing the test env deploy script + small fix in unit tests

add requirements files for simulating RHEL 7 and Debian 9

porting the tests over to python3

adding an update as the first step of the deploy script

slightly cleaner testenv deploy script

remove useless tests

small cleaning

adding posixGroups in test ldap

fix test configuration

trying to add test on AD/DC for travis

improve robustness if user dn attribute contains something like ,cn=

better behavior if user doesn't exist in one backend

fix AD test configuration

code multi-backends setups tests + new unit test ...

* add a ldap+ad setup and code for direct, only AD manipulation
* add unit test for _deleteuser if it doesn't exist in all backends

adding configuration for AD + LDAP setup

disable unit tests for AD on travis ...

Setting up a test env with samba 4 as AD doesn't seem possible on
travis. there is no other choice than disabling the AD unit tests
if we are on travis

adding slow_disabled decorator on html check unit tests

adding a decorator to disable slow tests ...

if env var LCNOSLOW=yes, the slowest tests are disable

adding unitests for backend AD

trying again...

more unicode testing

fix unit tests

adding possible missing winbind

trying something else...

killing dnsmasq

trying again to have a test env...

trying again to have a test env...

trying to stop dnsmasq (to use samba internal)