#4 Website navigation tweak

[Duncan Lithgow]

At the pdfblender website:
http://www.spaceblue.com/pdfblender/

... there is an announcement for the 1.12 release with a download link. But for most new users the download will not work without _first_ installing the ghostscript package.

I suggest that the announcement(s) link to 'Getting started':
http://www.spaceblue.com/pdfblender/gettingstarted.php

My girlfriend got really stressed by the message about the file path to gs not being valid.