New stable version with different bug fixes and enhancements (see alpha1, 2 and 3).
- leverage SQLite multi-threading power by removing the bottleneck lock #1412
- Fix block time issue in the REST API and documentation #1426
- Handle concurrency in CandidateForest::apply_block #1425
- Thread 'blockX' panicked at missed chain pull root candidate #1388
- blockchain: More robust CandidateForest #1405
- CRIT Service has terminated with an error #1418