code on Nostr: update nostrdb submodule (William Casarin) ndb: remove mutability on transaction ...

update nostrdb submodule (William Casarin)
ndb: remove mutability on transaction reference (William Casarin)
update nostrdb (William Casarin)
v0.1.5 (William Casarin)
profile: make fields public (William Casarin)
v0.1.4 (William Casarin)
ndb: add get_profile_by_pubkey (William Casarin)
fb: add profile flatbuffer for accessing profile data (William Casarin)
fix some warnings (William Casarin)
config: add skip_validation option (William Casarin)
ndb: remove unnecessary mut in process_event (William Casarin)
v0.1.3 (William Casarin)

pushed to nostrdb-rs:refs/heads/master
http://git.jb55.com/nostrdb-rs/commit/5517c12a04f0726a04c482fae1a77e8e4970b5bc.html