fix configuration of unit test

test with ldap and not ldaps

test for travis

more logs

trying to have more logs

greater timeout

trying to fix /etc/hosts

adding exception to prevent using skeleton module

fix backend module skeleton

fix /etc/hosts for test env

fix unit test and fix the way ldap connexion options are handled

better misc example

adding test for add/delete groups

small reorganization

fix add/del groups

fix API for backend ldap on groups handling

fix and add unit tests on ldap backend

multiple modification in backend ldap ...

* better handling of which attributes is recovered
* fix set_attrs method
* change api of set_attrs method for constancy
* change calls to _get_user and _search methods (internal api change)

better misc example

remove debuging log

fix templates on list of attributes

fix search display ...

* fix attritues handling, not using backend attribute name but key given
  in attributes.yml

implementing basic add of users

fix misc example for ldap backend usage

adding parameters for group attributes + comments

implementing modify and add/rm to groups

adding notification on addes user

better notifications ...

* longer delay
* different color for enable and disable

adding the notify javascript

implementing notification to explain automatic adding of roles