v0.6.0

• The authenticate method now takes an optional second argument state, which is returned by verify in your callback:

  -async authenticate(email: string): Promise<string>
  +async authenticate(email: string, state?: string): Promise<string>

• BREAKING: The verify method now returns (a promise for) an object, so that it can also return the original state from the call to authenticate:

  -async verify(token: string): Promise<string> {
  +async verify(token: string): Promise<{ email: string; state?: string }> {