Conner Fromknecht

chain/neutrino: improve rescan locking

1

Fixes 5 or so issues around locking the rescan-related member variables, see commit messages for more details. The issue fixed by the first commit was triggered by an lnd itest,...

rpcclient: support numeric maxfeerate in bitcoind sendrawtransaction

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In anticipation of bitcoind version 0.19, we will need to support a modification to the `sendrawtransaction` API to use a numeric field for `maxfeerate` instead of the current boolean value....

This PR adds a hybrid black/whitelist in order to filter for suitable user agents. Btcd's initial block download can stall intermittently due to targeting a bcash node as the primary...