Added a custom tag to display a link to a profile. Refactored the avatar tag to optionally display a profile link around the image. Removed the width and height attributes from the avatar image tag. I think this was causing disk hits whenever those properties were not cached. The avatar tag is now an inclusion tag.

"""
URLs for the oembed application.
"""
from django.conf.urls.defaults import *

urlpatterns = patterns('oembed.views',
    url(r'^fetch/$', 'fetch_media', name='oembed-fetch_media'),
    url(r'^fetch_saved/$', 'fetch_saved_media', name='oembed-fetch_saved_media'),
)