"sprint" milestone

Thanks for all of the bug triaging that went on over the weekend. As I'm going through it, some of these are things that are pretty high priority, which I'm milestoning as "1.3.x blocker", and some are lower priority, but are good candidates for good things to discuss in person during the sprint, which I'm milestoning as "sprint".

Feel free to do the same for anything else that you think would make sense as a sprint topic -- not necessarily to work on, but at least to discuss in person.