A templatetag for Django to get Gravatar URL's from email addresses.
With experimental local caching support on the cache-branch.
{% get_gravatar_for_email <email-address> [size] [rating] %}
{% get_gravatar_for_email joe@example.com 48 r %}
Differences from http://github.com/thoas/django-gravatar:
Added method returns URL string for gravatar image.
Not only for template tag, also can be used as simple function for importing
This function also supported not global default images