update the weighted ranking to the version in my thesis
dcsindex: update flags (-mirrorPath and -unpackedPath)

This makes the name of -mirrorPath inconsistent, but improves behavior.
The naming inconsistency will be adressed in a subsequent change.
dcsindex: don’t skip /debian/{changelog,readme}
add the dcs-web build date to dcs result pages
hide the expertbox by default

It was often misinterpreted by users.