s/django.core.urlresolvers/django.urls/g

Django 1.10 deprecation fix for Hackathon XIX
Addresses PLAT-1397

common/djangoapps/third_party_auth/admin.py

@@ -5,7 +5,7 @@ Admin site configuration for third party authentication
 from config_models.admin import KeyedConfigurationModelAdmin
 from django import forms
 from django.contrib import admin
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 from django.db import DatabaseError, transaction
 from django.utils.translation import ugettext_lazy as _