Design enhacements of the page

[rskikuli]

We definitely need to have some help from a design person for some small improvements. Maybe publish a note over at the folks at Open Source Design? http://opensourcedesign.net/

[jbelien]

I'll migrate the static part of the GeoPortal (homepage, credit page, ...) to Jekyll in the next few days so everyone can contribute more easily with the content and with the design.