pculture/miro — pull request #338 by paulswartz (2012-04-23 14:22:50+00:00)
Title: bz19040. some feeds break feedparser's image handling

I didn't actually see this with my version of Feedparser (it's returning a
dictionary with an 'href' key instead), but I can visualize it returning a
Unicode string given some feed. This code tries to be a bit more careful about
checking the keys (and whether it's looking at a dictionary at all) before
overriding the thumbnail.