Fixes issue #85. Also moves all json imports to go through oauth2client.anyjson.  Reviewed in http://codereview.appspot.com/5531064/.
diff --git a/oauth2client/client.py b/oauth2client/client.py
index 07df411..46d6cff 100644
--- a/oauth2client/client.py
+++ b/oauth2client/client.py
@@ -31,6 +31,7 @@
 import urllib
 import urlparse
 
+from anyjson import simplejson
 
 HAS_OPENSSL = False
 try:
@@ -41,16 +42,6 @@
 except ImportError:
   pass
 
-try:  # pragma: no cover
-  import simplejson
-except ImportError:  # pragma: no cover
-  try:
-    # Try to import from django, should work on App Engine
-    from django.utils import simplejson
-  except ImportError:
-    # Should work for Python2.6 and higher.
-    import json as simplejson
-
 try:
   from urlparse import parse_qsl
 except ImportError: