Fixed selenium test failure of JavascriptI18nTests.

The failure was introduced in dd1ea707.
The tests wouldn't start due to a "Dependency on unknown app" error.

tests/view_tests/tests/test_i18n.py

@@ -210,8 +210,11 @@ skip_selenium = not os.environ.get('DJANGO_SELENIUM_TESTS', False)
 @override_settings(ROOT_URLCONF='view_tests.urls')
 class JavascriptI18nTests(LiveServerTestCase):
 
-    # The test cases use translations from these apps.
-    available_apps = ['django.contrib.admin', 'view_tests']
+    # The test cases use fixtures & translations from these apps.
+    available_apps = [
+        'django.contrib.admin', 'django.contrib.auth',
+        'django.contrib.contenttypes', 'view_tests',
+    ]
     webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'
 
     @classmethod