Release notes 0.19.0

Bitcoin ABC version 0.19.0 is now available from:

https://download.bitcoinabc.org/0.19.0/

This release includes the following features and fixes: - Support for May 2019 upgrade features, as detailed at https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2019-05-15-upgrade.md - Schnorr signatures in OP_CHECK(DATA)SIG(VERIFY): https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2019-05-15-schnorr.md - Segwit P2SH recovery: https://github.com/bitcoincashorg/bitcoincash.org/blob/master/spec/2019-05-15-segwit-recovery.md - Bump automatic replay protection to November 2019 upgrade - Fix bitcoin-qt crash on start for users who had previously selected minimum absolute fee. - Fix a regression in getrawtransaction output where confirmations, time, and blocktime were not present. - Fixed incorrect naming for the bitcoin-qt.desktop icon for Debian/Ubuntu distributions.