There were some modules that did not offer "or (at your option) any
later version" in their license and these had to be left alone.
This should solve the incorrect FSF address issue #4 on GitHub.
$_ is not a copy, it is an alias to the original value.
Therefore modifying it will mess with original list... That's
not what we want most of the time.
Also, using map to s/// two variables does not look right. What
a stupid race to save one line of code.
Replaced the $Id$ tags in $WikiDescription for all the modules and wiki.pl itself with a link to the source and an appropriate wiki page, if possible. This is shown in action=version and should help users figure out what another wiki has installed.
