Add AuthorBalance migration

apps/payment/migrations/0012_auto_20180302_0740.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.0.2 on 2018-03-02 07:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('payment', '0011_authorbalance_cause'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='authorbalance',
+            name='cause',
+            field=models.TextField(blank=True, null=True, verbose_name='Причина отказа'),
+        ),
+    ]