World Wind Plugins update

It has been a while since i last updated my WW plugins page.

I spent part of the Easter week end fine tuning Stephan Mantler Lens Flare plugin. Settings are now saved, i extended the number of sprites and added a couple original flare 'colored' textures. The effect looks more realistic now.

I also added the 3D Cross Section plugin and updated a couple of my 'old' plugins for WW 1.4.