Fix some reviewing considerations.

- appropriate naming for migration
- remove __future__ imports.
- remove "CofProfile" left in kfet/models.py

gestion/tests.py

@@ -5,16 +5,12 @@ when you run "manage.py test".
 
 Replace this with more appropriate tests for your application.
 """
-
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
 from django.db.utils import IntegrityError
 from django.test import TestCase
 
 from gestion.models import Profile, User
 
+
 def create_profile(username):
     """
     In order to create a profile, I need to create a User first.