Update index.html for lazy-loading. Dynamically create images from the noscript img-src tag.

Tidy up javascript, make more functional and object-y (..?)

Clean before building templates.
Add next/prev button events.

Create refresh/clearing of slideshow.
Hacky fix to make buttons work for now. Need to update CSS and make it nicer. CSS :(
Merge pull request #1 from amurf/feature/lazy-loading

Feature/lazy loading