* 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)