blocks: write note blocks on ingest (William Casarin)

blocks: actually set the note block version (William Casarin)

blocks: add ndb_blocks_free (William Casarin)

blocks: add total_size (William Casarin)

header: move bech32 around (William Casarin)

invoice: fix crash in any-amount invoice parsing (William Casarin)

test: chop some unused logs (William Casarin)

pushed to nostrdb:refs/heads/master

http://git.jb55.com/nostrdb/commit/b975cff7ba36400b33ef89efd4fb9e2bef5ebdc3.html