sources/ldap(major): add sync_users and sync_groups, rewrite auth_user method

passbook/sources/ldap/settings.py

@@ -1,5 +1,13 @@
 """LDAP Settings"""
+from celery.schedules import crontab
 
 AUTHENTICATION_BACKENDS = [
     'passbook.sources.ldap.auth.LDAPBackend',
 ]
+
+CELERY_BEAT_SCHEDULE = {
+    'sync': {
+        'task': 'passbook.sources.ldap.tasks.sync',
+        'schedule': crontab(minute=0)  # Run every hour
+    }
+}