Chat Systems 4.0.2

Upgrading from 4.0.1

• Set VERSION=4.0.2, pull both images and restart. Only the frontend changed, and there is no
  migration.

Fixed

• A failed sign-in says why: a wrong password reads "Invalid email or password" and a wrong
  second-factor code "That code did not match", instead of "Your session expired" for every
  failure. The same goes for an invalid invite or reset link.

Added

• Forgot password? on the sign-in form. It opens the reset page with the email already filled
  in; the emailed link works for an hour, and setting a new password signs out every device. The
  reset pages match the sign-in page.