Remove Django 1.10 from tests and move imports to top of the file

.travis.yml

@@ -5,7 +5,6 @@ python:
   - "3.6"
 env:
   - DJANGO=1.8.* DRF=3.6.*
-  - DJANGO=1.10.* DRF=3.7.*
   - DJANGO=1.11.* DRF=3.7.*
   - DJANGO=2.0.* DRF=3.7.*
 install:

rest_auth/tests/mixins.py

@@ -7,6 +7,11 @@ from django.utils.encoding import force_text
 from rest_framework import status
 from rest_framework import permissions
 
+try:
+    from django.urls import reverse
+except ImportError:
+    from django.core.urlresolvers import reverse
+
 
 class CustomPermissionClass(permissions.BasePermission):
     message = 'You shall not pass!'
@@ -14,11 +19,6 @@ class CustomPermissionClass(permissions.BasePermission):
     def has_permission(self, request, view):
         return False
 
-try:
-    from django.urls import reverse
-except ImportError:
-    from django.core.urlresolvers import reverse
-
 
 class APIClient(Client):
 
@@ -30,7 +30,6 @@ class APIClient(Client):
 
 
 class TestsMixin(object):
-
     """
     base for API tests:
         * easy request calls, f.e.: self.post(url, data), self.get(url)