Save block diffs#1

Draft

lithp wants to merge 8 commits intolithp/turbo-migrationfrom

lithp/save-block-diffs

Commits on Jul 31, 2019

Persist block diffs

Brian
authored and
Brian
committed
Add test for updating a non-None state

Brian
authored and
Brian
committed
Add some more tests

Brian
authored and
Brian
committed

Commits on Aug 1, 2019

Clean up block diffs

Brian
authored and
Brian
committed
Add test for delete_storage

Brian
authored and
Brian
committed

Commits on Aug 2, 2019

Test that block diffs are saved during block import
edgar-aguilar-189
committed

Commits on Aug 7, 2019