Add description field

InvenTree/common/migrations/0005_auto_20190915_1256.py

@@ -0,0 +1,23 @@
+# Generated by Django 2.2.5 on 2019-09-15 12:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('common', '0004_inventreesetting'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='inventreesetting',
+            name='description',
+            field=models.CharField(blank=True, help_text='Settings description', max_length=200),
+        ),
+        migrations.AlterField(
+            model_name='inventreesetting',
+            name='key',
+            field=models.CharField(help_text='Settings key (must be unique - case insensitive', max_length=50, unique=True),
+        ),
+    ]