Background image path hard coded in template

[kroesche]

If you customize the location of your photos with images_path, then the background_photo no longer works. The index template hardcodes a path to the background photo.

This is not a big deal as I can easily edit the template. However if you ever update the configuration logic this might be something to consider. Make the path to the background more flexible and not hardcode in the template.

Thanks for this project!