add judge_server related api

conf/migrations/0005_judgeservertoken.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.10 on 2016-11-20 11:00
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('conf', '0004_auto_20161120_1834'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='JudgeServerToken',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('token', models.CharField(max_length=32)),
+            ],
+            options={
+                'db_table': 'judge_server_token',
+            },
+        ),
+    ]