Debugging process mind meld

[jaril]

Also, bigger picture feature idea: it's useful to have the replay of reproducing a bug, but I'd love a replay on the debugging process (e.g. if @Andarist were to debug something from a Replay, he could record that process sort of like a "debugging tour" and share it with me)

This makes Replay 10x useful for dev teams (vs. 2x useful: "I've replayed the bug and fixed it, don't worry about how" -> "I've replayed the bug and fixed it, here's how so you can fix similar bugs too")