added management for titles and captions for each file

lightbox is now capable to handle text which contains not just three words

documentation update

fixed German language in Ajax list (Bild 1 von 10)

fixed HTTP 500 caused by large log file containing for Picasa access requests.

fixed SEO URLs when appending a suffix like .html to every URL.

fixed adding comments.

fixed enlargement of images because of JavaScript calculations

fixed hiding of navigation buttons in single image view if the last / first image is shown.

fixed blue background in Ajax view with J2.5 default template

fixed issue with lightbox and some URL encoding. Lightbox opened but no image appeared.