version bumps and migration to django 2.2

ircbot/migrations/0009_botadmin_user.py

@@ -15,7 +15,7 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='botadmin',
             name='user',
-            field=models.ForeignKey(default=1, to=settings.AUTH_USER_MODEL),
+            field=models.ForeignKey(default=1, to=settings.AUTH_USER_MODEL, on_delete=models.CASCADE),
             preserve_default=False,
         ),
     ]

ircbot/models.py

@@ -47,7 +47,7 @@ class BotUser(models.Model):
     """Configure bot users, which can do things through the bot and standard Django auth."""
 
     nickmask = models.CharField(max_length=200, unique=True)
-    user = models.ForeignKey(settings.AUTH_USER_MODEL)
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
 
     class Meta:
         permissions = (