[Bitcoin-ABC/bitcoin-abc] 0.18.0

Bitcoin ABC version 0.18.0 is now available from:

This release includes the following features and fixes:
— Remove the bip9params configuration.
— Remove the bip9_softforks result from the getblockchaininfo RPC call.
— Remove the rules, vbavailable and vbrequired result from the getblocktemplate RPC call.
— Remove the rules argument from the getblocktemplate RPC call.
— Log difference between block header time and received time when competing blocks are received for the same chain height.
— Bump automatic replay protection to May 2019 upgrade.
— Remove topological ordering constraint from blocks starting Nov, 15 2018.
— Implement canonical transaction order, enforced Nov, 15 2018.
— Add OP_CHECKDATASIG and OP_CHECKDATASIGVERIFY, activates Nov, 15 2018.
— Enforce minimum transaction size of 100 bytes, starting Nov, 15 2018.
— Enforce PUSH ONLY rule for scriptSig, starting Nov, 15 2018.
— Enforce CLEANSTACK rule, starting Nov 15, 2018.