Greg Fitzgerald aad0d90fdd Use epoch_height to generate schedule instead of last_id
I had suggested the last_id, but that puts an unnecessary dependency
on LastIdsQueue. Using epoch height is pretty interesting in that
given the same set of stakers, you simply increment the seed once
per epoch.

Also, tighten up the LeaderSchedule code.
2019-02-25 08:49:43 -08:00
..
2019-02-19 07:17:04 -07:00