Restructured code so that GTK doesn't get confused about gestures vs events and stops the click bubbling through to a single-click activate on the row, and so that button actually clicks
Differentiate permanent failure from temporary failure and added "broken image" for permanent failure
Fixed Instagram image loading
Changed image loading so that high res images that we don't know dimensions of in advance (e.g. Instagram) use a spinner while loading
Fixed a few related things here: