fix rewrite-rule for redirects to URIs, fixes #1043

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
phase out hardy and dovecot1 configs for gentoo
fix rpmlints incorrect-fsf-address
better calculation of mysql-diskspace usage (like we do in the customer_mysql-overview), thx to KulMaks from the forum

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>
don't use name 'usage' as it is a mysql-reserved word, thx to anbrosius for noticing

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>