adding method and unit tests to get all the attributes of one backend

adding close connexion and exception handling

implement unit test on auth test

fix wrong call to method

many fixes in unit tests + fix in params + fix in constant ...

Oh god, python-ldap is crap...
* add better unit test
* correct params name
* correct exception handling
* disable testConnectSSLNoCheck (impossible to test with a certificate
  previously defined)

multiple changes ...

* change parameters name for Backend Ldap
* fix default value handling in backends get_param
* correct exception in backends get_param
* fix syntaxe error
* add backend name in test_BackendLdap.py

correct the way variables are recovered by ldap backend

adding a get_param method + pass backend name to backend

partial testConnect implementation

correction on example configuration file

fix backend name

fix backend name (collision with libraries name)

adding skeleton for ldap backed

begin ldap backend implementation

better logs

adding unit tests for exception while loading module

implementing loading backends ...

* fix conf file
* add exceptions
* fix modules skeletons

multiple modifications: ...

* adding logs in conf loading
* fixing attributes/roles handling in class LdapCherry
* fix unit test on logs
* add unit test for random exception

adding unit test for missing backend

adding unit tests for missing parameters in main conf file

adding unit tests

small debug script for class LdapCherry

set log level to debug for test configuration

adding base template for web pages

implementing backends parsing of main config file

init backends initialization method

fix default configuration

displace _get_loglevel near othe log related methods

fix log_level + unit tests ...

* python logging doesn't support the 7 log levels of syslog, compensate it
* adding unit test on log level

adding loading roles and attributes