@onlyworlds/sdk 4.31.0

Added

• Signing in with a password (keel #211): signInWithPassword({ email | username, password, tokenName })
  turns an email address (or username) and password into a new account token (ow_a_) for this device,
  named tokenName, the name the account's tokens page lists it under. It signs in at keel's sign-in service
  ({baseUrl}/auth/app/v1), mints the token with that session at POST /account/tokens, then ends the
  session, whether the mint worked or not. Only the token comes back (OwSignedIn: token, id, name,
  last4); the password is sent once and held nowhere. Works on a client with no key, and sends no key
  whatever the client holds. Exactly one of email and username, else a TypeError before sending.
• OwSignInError, with a reason: invalid_credentials, email_unverified, rate_limited (with
  retryAfter when keel sends it), offline, mint_failed or failed, plus keel's status and code.
  The password is never in its message or properties. For Atlas's sign-in (atlas #387) and Lantern, which
  carried its own copy. The session's end is cut off after five seconds, so a hung network never holds a
  sign-in whose token is already made. Checked live on production (a sign-in, the token reading the
  account's worlds, revoked and read back as key_revoked).

Changed

• me()'s doc names the player kind (keel #353).