For bitbucket issue #2, tweak the admin settings for the Post model to reduce slow queries. Define our own queryset() method so we can control the select_related(), and not have it cascade from post to topics to forums to categories. Removed 'topic' from list_display because MySQL still sucked with 2 inner joins. Now it seems to be tolerable with only one join to User.

"""
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'),
)