Bitcoin ABC 0.19.1

Bitcoin ABC version 0.19.1 is now available from:

https://download.bitcoinabc.org/0.19.1/

This release includes the following features and fixes:

• Add signrawtransactionwithkey and signrawtransactionwithwallet RPCs. These are specialized subsets of the signrawtransaction RPC.
• Deprecate nblocks parameter in estimatefee. See bitcoin-cli help estimatefee for more info. Use -deprecatedrpc=estimatefee to temporarily re-enable the old behavior while you migrate.
• Minor bug fixes and wallet UI cleanup
• Removed txconfirmtarget option from bitcoind