* return error from rawdb
* squash
* v14
* improve performance of put
* clean
* clean
* hide feature behind ENV variable
* cleanup
* cleanup
* disable ipc and make Readme less confusing (people thought points are depend on each-other)
* fix test
* cleanup
* cleanup
* store stageData correctly
* integration: use State of sync, use stage data, don't skip persistent steps even if they complete before interruption
* reset_state: clear unwind stages info
* stage4: stop where previous stage stopped, print to logs digits which represent what exactly is in DB, rename variable 'nextBlockNumber' to 'stateProgress'
* rebase to master
* simplify chainconfig
* try increase sleep time on ci
* try increase sleep time on ci
* try increase sleep time on ci
* try increase sleep time on ci
