TastyPie 0.9.13 doesn't install (reported upstream at https://github.com/toastdriven/django-tastypie/issues/873) so use 0.9.12 for now.
This commit is a foundation upon a more robust image fetching code will be built in the future, and it already fixes at least one weird issue I've seen.
Use forked django-images for now, until we can communicate with the upstream about it. Fixes #4