title: "no such column" after adding a field to the model
body: <p>environment
  DJANGO VERSION 1.9
  Python 2.7.6</p>
  
  <p>I added a field (scores) to a model class in models.py like this</p>
  
  <pre><code>from django.db import models
  from django.contrib.auth.models import User
  import urllib
  import hashlib
  
  
  class profile(models.Model):
      user = models.OneToOneField(User)
      nickname = models.CharField(max_length=12, blank=True, null=True)
      use_gravatar = models.BooleanField(default=True)
      location = models.CharField(max_length=20, blank=True, null=True)
      avatar_url = models.URLField(blank=True, null=True)
      website = models.URLField(blank=True, null=True)
      **scores = models.IntegerField(default = 0)**  
  </code></pre>
  
  <p>and I run the following commands to sync the database.</p>
  
  <pre><code>python manage.py makemigrations
  python manage.py migrate
  </code></pre>
  
  <p>But got this </p>
  
  <pre><code>OperationalError at /
  no such column: account_profile.scores
  Request Method: GET
  Request URL:    http://127.0.0.1:8000/
  Django Version: 1.8.4
  Exception Type: OperationalError
  Exception Value:    
  no such column: account_profile.scores
  Exception Location: C:\Python27\lib\site-packages\django\db\backends\sqlite3\base.py in execute, line 318
  Python Executable:  C:\Python27\python.exe
  Python Version: 2.7.5
  Python Path:    
  ['c:\\FairyBBS',
   'C:\\Users\\user\\AppData\\Roaming\\Python\\Python27\\site-packages\\setuptools-5.4.1-py2.7.egg',
   'C:\\Users\\user\\AppData\\Roaming\\Python\\Python27\\site-packages\\urlobject-2.4.0-py2.7.egg',
   'C:\\Users\\user\\AppData\\Roaming\\Python\\Python27\\site-packages\\djangorestframework-0.4.0-py2.7.egg',
   'C:\\WINDOWS\\SYSTEM32\\python27.zip',
   'C:\\Python27\\DLLs',
   'C:\\Python27\\lib',
   'C:\\Python27\\lib\\plat-win',
   'C:\\Python27\\lib\\lib-tk',
   'C:\\Python27',
   'C:\\Users\\user\\AppData\\Roaming\\Python\\Python27\\site-packages',
   'C:\\Python27\\lib\\site-packages']
  Server time:    星期四, 17 三月 2016 14:08:04 +0800
  </code></pre>