This removes the need for a timeout page (and probably hacker.php) and
moves the login form and status to the header. If your login times out
you won't lose your place anymore and links will always work. Works
for me but at the moment index_po.php is imported in aur.inc which has
to stay until the translations from it for login are moved to
aur_po.php.

Signed-off-by: Callan Barrett <wizzomafizzo@gmail.com>