* v1.3.8
* mitigate refcell conflict in state diffing (#2601)
* mitigate refcell conflict in state diffing
Also uses RefCell::get_mut in a few places.
* Add test case
* Fixed stalled sync
* Fixed tx queue limit for local transactions (#2616)
* Fixed tx queue limit for local tx
* Fixing test
* Increas gas limit to 20x
* Additional logs when transactions is removed from queue (#2617)
* Database performance tweaks (#2619)
* Handle reorganizations in the state cache
* Renamed and documented a few methods
* Basic test
* Renamed pending to buffered
* Caching optimizations
* Fixed a test
* Fixed a test
* RocksDB version bump
* Preserve cache on reverting the snapshot (#2488)
* Preserve cache on reverting the snapshot
* Renamed merge_with into replace_with
* Renamed and documented snapshotting methods
* Track dirty accounts in the state (#2461)
* State to track dirty accounts
* Removed clone_for_snapshot
* Renaming stuff
* Documentation and other minor fixes
* Replaced MaybeAccount with Option
* Adjustable stack size for EVM (#2483)
* stack size for io workers & evm threshold
* rust way to remember stack size
* right value
* 24kb size
* some stack reduction
* Fixed overflow panic in handshake_panic (#2495)
