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

passbook/sources/ldap/migrations/0004_auto_20191011_0839.py

@@ -0,0 +1,25 @@
+# Generated by Django 2.2.6 on 2019-10-11 08:39
+
+import django.core.validators
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('passbook_sources_ldap', '0003_auto_20191011_0825'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='ldapsource',
+            name='server_uri',
+            field=models.TextField(validators=[django.core.validators.URLValidator(schemes=['ldap', 'ldaps'])]),
+        ),
+        migrations.AlterField(
+            model_name='ldapsource',
+            name='sync_parent_group',
+            field=models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.SET_DEFAULT, to='passbook_core.Group'),
+        ),
+    ]