Merge pull request cockroachdb#19000 from a-robinson/cherrypick_18997

cherrypick-1.1: engine: Make temp directory cleanup resilient to rename errors

Merge pull request cockroachdb#19000 from a-robinson/cherrypick_18997

cherrypick-1.1: engine: Make temp directory cleanup resilient to rename errors

Merge pull request cockroachdb#18800 from a-robinson/cherrypick_18778

cherrypick-1.1: storage: Fix tracking of keys written in replica.writeStats

Merge pull request cockroachdb#18498 from BramGruneir/bram/cherrypick…

…_18376

 cherrypick-1.1: server, ui: Fix the range log history in the range debug page.

Merge pull request cockroachdb#18397 from petermattis/pmattis/rocksdb…

…-delete-range-bug

storage/engine: reproduce RocksDB DeleteRange bug

Merge pull request cockroachdb#18158 from dt/opts

sqlccl: let the reusable helper filter valueless opts

Merge pull request cockroachdb#18184 from bdarnell/cherrypick-quiesce

cherrypick: storage: fix quiescence when not leaseholder

Merge pull request cockroachdb#17689 from knz/20170816-cherry-pick-17683

cherrypick: log: allow panic to propagate on crash reporting timeouts

Merge pull request cockroachdb#17425 from petermattis/pmattis/lockost…

…hread

storage/engine: remove LockOSThread

Merge pull request cockroachdb#17418 from a-robinson/quota

storage: Fix flake in TestQuotaPool