aac0b6dd79 test: test sendall and send do anti-fee-sniping (ishaanam)
20802c7b65 wallet, rpc: add anti-fee-sniping to `send` and `sendall` (ishaanam)
Pull request description:
Currently, `send` and `sendall` don't do anti-fee-sniping because they don't use `CreateTransaction`. This PR adds anti-fee-sniping to these RPCs by calling `DiscourageFeeSniping` from `FinishTransaction` when the user does not specify a locktime.
ACKs for top commit:
achow101:
ACK aac0b6dd79
murchandamus:
ACK aac0b6dd79
glozow:
ACK aac0b6dd79
Tree-SHA512: d4f1b43b5bda489bdba46b0af60e50bff0de604a35670e6ea6e1de2b539f16b3f68805492f51d6d2078d421b63432ca22a561a5721d1a37686f2e48284e1e646