add some fancy images, yo. full-res and non-cropped for now, work in progress.

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branch : fancy-images
rename : img/eindhoven-city.jpg => img/eindhoven/eindhoven-1.jpg
add photo links

--HG--
branch : fancy-images
The right place for this piece of JS.
* merge default to fancy-images

--HG--
branch : fancy-images
neie platjes!

--HG--
branch : fancy-images
merge fancy-images to default
shuffle and fade images

--HG--
rename : img/eindhoven/eindhoven-12.jpg => img/eindhoven/eindhoven-0.jpg
* don't shuffle on mobile
* don't consume as much bandwidth on mobile
Updates photos:
- Removed all non-commercial photos.
- Added a few photos we can use.
- Rescaled and re-encoded photos to dramatically decrease bandwidth usage.
- Added attribution and fixed markup in README.
Tidied up a few things. Switched to jsDelivr CDN.
Updated some gems.