Change django.core.urlresolvers imports

-- compatible with 1.11 --

gestioncof/admin.py

@@ -3,8 +3,8 @@ from django import forms
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
 from django.contrib.auth.models import Group, Permission, User
-from django.core.urlresolvers import reverse
 from django.db.models import Q
+from django.urls import reverse
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
 

gestioncof/views.py

@@ -12,9 +12,9 @@ from django.contrib.auth.views import (
     redirect_to_login,
 )
 from django.contrib.sites.models import Site
-from django.core.urlresolvers import reverse_lazy
 from django.http import Http404, HttpResponse, HttpResponseForbidden
 from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse_lazy
 from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _
 from django.views.generic import FormView