diff --git a/docs/api-guide/permissions.md b/docs/api-guide/permissions.md
index 6a1297e60..901f810c5 100644
--- a/docs/api-guide/permissions.md
+++ b/docs/api-guide/permissions.md
@@ -51,7 +51,7 @@ For example:
 ---
 
 **Note**: With the exception of `DjangoObjectPermissions`, the provided
-permission classes in `rest_framework.permssions` **do not** implement the
+permission classes in `rest_framework.permissions` **do not** implement the
 methods necessary to check object permissions.
 
 If you wish to use the provided permission classes in order to check object
diff --git a/docs/api-guide/schemas.md b/docs/api-guide/schemas.md
index 3d07ed621..b09b1606e 100644
--- a/docs/api-guide/schemas.md
+++ b/docs/api-guide/schemas.md
@@ -20,7 +20,7 @@ can render the schema into the commonly used YAML-based OpenAPI format.
 
 ## Quickstart
 
-There are two different ways you can serve a schema description for you API.
+There are two different ways you can serve a schema description for your API.
 
 ### Generating a schema with the `generateschema` management command
 
diff --git a/docs/tutorial/1-serialization.md b/docs/tutorial/1-serialization.md
index 07ee8f208..224ebf25b 100644
--- a/docs/tutorial/1-serialization.md
+++ b/docs/tutorial/1-serialization.md
@@ -8,7 +8,7 @@ The tutorial is fairly in-depth, so you should probably get a cookie and a cup o
 
 ---
 
-**Note**: The code for this tutorial is available in the [tomchristie/rest-framework-tutorial][repo] repository on GitHub.  The completed implementation is also online as a sandbox version for testing, [available here][sandbox].
+**Note**: The code for this tutorial is available in the [encode/rest-framework-tutorial][repo] repository on GitHub.  The completed implementation is also online as a sandbox version for testing, [available here][sandbox].
 
 ---
 
@@ -218,7 +218,6 @@ Edit the `snippets/views.py` file, and add the following.
 
     from django.http import HttpResponse, JsonResponse
     from django.views.decorators.csrf import csrf_exempt
-    from rest_framework.renderers import JSONRenderer
     from rest_framework.parsers import JSONParser
     from snippets.models import Snippet
     from snippets.serializers import SnippetSerializer
diff --git a/rest_framework/utils/field_mapping.py b/rest_framework/utils/field_mapping.py
index ae1281138..1281ee167 100644
--- a/rest_framework/utils/field_mapping.py
+++ b/rest_framework/utils/field_mapping.py
@@ -106,8 +106,7 @@ def get_field_kwargs(field_name, model_field):
     if model_field.null and not isinstance(model_field, models.NullBooleanField):
         kwargs['allow_null'] = True
 
-    if model_field.blank and (isinstance(model_field, models.CharField) or
-                              isinstance(model_field, models.TextField)):
+    if model_field.blank and (isinstance(model_field, (models.CharField, models.TextField))):
         kwargs['allow_blank'] = True
 
     if isinstance(model_field, models.FilePathField):
@@ -193,9 +192,7 @@ def get_field_kwargs(field_name, model_field):
     # Ensure that max_length is passed explicitly as a keyword arg,
     # rather than as a validator.
     max_length = getattr(model_field, 'max_length', None)
-    if max_length is not None and (isinstance(model_field, models.CharField) or
-                                   isinstance(model_field, models.TextField) or
-                                   isinstance(model_field, models.FileField)):
+    if max_length is not None and (isinstance(model_field, (models.CharField, models.TextField, models.FileField))):
         kwargs['max_length'] = max_length
         validator_kwarg = [
             validator for validator in validator_kwarg
diff --git a/tests/test_renderers.py b/tests/test_renderers.py
index 2d7e64b37..17afa09fb 100644
--- a/tests/test_renderers.py
+++ b/tests/test_renderers.py
@@ -633,7 +633,7 @@ class BrowsableAPIRendererTests(URLPatternsTestCase):
             raise NotImplementedError
 
     router = SimpleRouter()
-    router.register('examples', ExampleViewSet, base_name='example')
+    router.register('examples', ExampleViewSet, basename='example')
     urlpatterns = [url(r'^api/', include(router.urls))]
 
     def setUp(self):
diff --git a/tests/test_routers.py b/tests/test_routers.py
index c7a354146..adcec8bd6 100644
--- a/tests/test_routers.py
+++ b/tests/test_routers.py
@@ -119,7 +119,7 @@ class BasicViewSet(viewsets.ViewSet):
 
 class TestSimpleRouter(URLPatternsTestCase, TestCase):
     router = SimpleRouter()
-    router.register('basics', BasicViewSet, base_name='basic')
+    router.register('basics', BasicViewSet, basename='basic')
 
     urlpatterns = [
         url(r'^api/', include(router.urls)),
diff --git a/tox.ini b/tox.ini
index a6b8e9563..d478be846 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,7 +25,7 @@ deps =
         django111: Django>=1.11,<2.0
         django20: Django>=2.0,<2.1
         django21: Django>=2.1,<2.2
-        django22: Django>=2.2b1,<3.0
+        django22: Django>=2.2rc1,<3.0
         djangomaster: https://github.com/django/django/archive/master.tar.gz
         -rrequirements/requirements-testing.txt
         -rrequirements/requirements-optionals.txt