0.48.0

• Delete your account, yourself. Settings, under Server account, has a
  Delete account button. It asks for your password again, because a session
  left open somewhere should not be enough to destroy an account, and then
  removes the account and every record synced under it, at once and for good.
  There was no way to do this before: the only route was an administrator, and
  the server refused even that for your own account. The last administrator of a
  server still cannot leave, since nobody would be left to run it.
  Your library is untouched. It stays on the device and works without an account.