The BreadWallet-based DigiByte Android/iOS apps used HMAC-SHA512 key
"DigiByte seed" (not BIP32's "Bitcoin seed") when turning the BIP39 seed
into the master node, so the same 12 words give a different key tree and
a standard m/0' scan finds nothing. rootFromSeed() takes an optional HMAC
key; balance scan, history, send and the derivation-path search now
cover m/0' under both keys, and user-added extra paths carry the key.
Login / Import / Create / Settings were vertically centred in the content
column (align-self: center), which on tall screens left a dead band above
the page heading. Now top-aligned; horizontal centring unchanged.
New PasswordInput component wraps every password / PIN / passphrase field
with an eye button that toggles the text. Also: wallet-order drag&drop,
path-search sweep, settings panel sections, change-address policy.
