Description

It should be wise to add a couple of shared variables in ./.wmlrc file that
define GnuPG stable and unstable version numbers. This way, site can be
kept up-to-date by simply changing a variable definition.

Fix

A new file called /swdb.wml has been added. It gathers all data about
software and provides a simple yet extensible macro to use those data
throughtout the whole site.