The last release candidate for token swap after chaos monkey test and security fixes.
Changes merged since last release v1.1.0.
- cross-shard transaction receipt merkle root bug fix
- add crosslink and cxreceipts length RPC api
- apiv2 added to support decimal value output instead of hex value
- libp2p upgrade to v0.5.0
- security guard added to support block rollback
- security fix of sanity check on cx receipt