Merge branch 'hotfix-1.4.1' into tx-plocal
Issue #1404 Initial Tx implementation was implemented without tests.
Issue #1404 All Tx tests were passed.
Issue #1404 WAL performance optimizations. Blueprints tests were successfully passed.
Issue #1404 WAL durability test improvements.
Issue #1404 Initial test to restore data after crash in Tx mode was passed.
Merge branch 'tx-plocal' into develop