vmhosts, restructure urls, etc.

uncloud/uncloud_vm/migrations/0003_auto_20200225_2028.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.0.3 on 2020-02-25 20:28
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_vm', '0002_auto_20200225_1952'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='vmproduct',
+            name='vmhost',
+            field=models.ForeignKey(blank=True, editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_vm.VMHost'),
+        ),
+    ]