Picture gallery - Base camp and non-caving thumbnails

There are now far too many images to fit on a single gallery page, so lots have been moved in a gallery reorganisation.

Most of these thumbnails have full sized images linked, and these have links back to appropriate pages of the area and cave descriptions or various expedition handbooks (including the festering guide). We've tried to gather together logical groups of pictures for visual tours of CUCC's caving area.