Thanks Emma!

This is Latin and is a standard phrase (poem) that most people use when trying to "fill" space with nonsense - usually to be replaced later with real content.

Dreamweaver (a web page creation tool) has a plug-in you can get called "Latin text" that types in X-amount of characters from this poem to fill in space when you make web site mock-ups.

In other words, it's just nonsense - at least the first part is. I haven't bothered comparing every single word. Maybe it branches off into something sensible after a few sentences...