Merge #8601: Add option to opt into full-RBF when sending funds (rebase, original by petertodd)
86726d8 Rename -optintofullrbf option to -walletrbf (Wladimir J. van der Laan)
05fa823 wallet: Add BIP125 comment for MAXINT-1/-2 behavior (Wladimir J. van der Laan)
152f45b Add option to opt into full-RBF when sending funds (Peter Todd)