Update website bridgesii --> diffusa

[Stijn]

A bit late, I know, but I've finally taken some time to convert and adapt the website regarding the new insights (2007) on the Pomacea bridgesii - diffusa species.
It's a pleasure to work on the site again, despite it being so long ago since last update (shame on me). I do have some more interesting articles that I would like to add, but I won't make any promises on when...

in any case, suggestions or error reports are welcome

[pbgroupie]

Thanks for all of your hard work keeping us updated. If it wouldn't have been for all of your long hours putting so much information together in the first place, many of today's researchers wouldn't have had the head start!