Security: Clear the login form password! That doesn't happen automatically, because we intervene in the normal form handling.
Security: Clear the login form password! That doesn't happen automatically,
because we intervene in the normal form handling.

Also:
- Fade out the form since the XHR send/complete loading message doesn't
  last through the entire login process.
- If the document is reloading, we have to restart from the entry page.

SpiderOak/so_client_html5,SpiderOak/so_client_html5