Move real_name to UserProfile;

Delete student_id field;
Mark the problems that have submission;
Alter dispatcher to adapt the changes.

account/migrations/0005_auto_20170830_1154.py

@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-08-30 11:54
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import jsonfield.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0004_remove_userprofile_time_zone'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='userprofile',
+            old_name='problems_status',
+            new_name='acm_problems_status',
+        ),
+        migrations.AddField(
+            model_name='userprofile',
+            name='oi_problems_status',
+            field=jsonfield.fields.JSONField(default={}),
+        ),
+        migrations.RemoveField(
+            model_name='user',
+            name='real_name',
+        ),
+        migrations.RemoveField(
+            model_name='userprofile',
+            name='student_id',
+        ),
+        migrations.AddField(
+            model_name='userprofile',
+            name='real_name',
+            field=models.CharField(max_length=30, blank=True, null=True),
+        ),
+    ]