simlpejson modification, datetime support.

safesimplejson.py

#!/usr/bin/env python

import datetime
from django.utils import simplejson

def jsondefault(self, data):
  ####  logging.warn( data )
    if isinstance(data , datetime.date ):
        data = data.strftime("%Y-%m-%d")
    if isinstance(data , datetime.datetime ):
        data = data.strftime("%Y-%m-%d %H:%i")
    return data

simplejson.JSONEncoder.default = jsondefault