When distro defaults are explicitly specified, use the distro default mirrors (Closes: #710347).
debian/changelog: Add Closes: for #662633
htdocs/index.tpl: Read more.

Signed-off-by: Holger Levsen <holger@layer-acht.org>
htdocs/index.tpl: fix slang
htdocs/index.tpl: todays logic first, then Tollef
index.tpl: fix typo