Fixed a PendingDeprecationWarning coming from django.core.cache in Python 2.6.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14090 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/cache/__init__.py

@@ -15,7 +15,11 @@ cache class.
 See docs/cache.txt for information on the public API.
 """
 
-from cgi import parse_qsl
+try:
+    from urlparse import parse_qsl
+except ImportError:
+    from cgi import parse_qsl
+
 from django.conf import settings
 from django.core import signals
 from django.core.cache.backends.base import InvalidCacheBackendError, CacheKeyWarning