ports/110413: new port: drupal5

[Nick Hilliard]

> What about making this www/drupal and copying existing drupal port to
> www/drupal4?

If anything, I'd like to move www/drupal to www/drupal4 and keep drupal5 as 
www/drupal5.

While you can upgrade pretty easily from drupal4 to drupal5, most of the 
ported modules have not yet been ported by their authors to drupal51.  This 
means that if we move www/drupal to www/drupal4, functionality will be lost 
from the freebsd ports collection.  I don't think that this is a good idea.

Also, I'm not actively using drupal5 yet in production.

Nick