Add photography to paulrhayes.com

* Create a photo template
* Add two photos, with meta data and exif
* Cleanup old helper CSS
* Allow indexing and next/prev links based on layout type

![screen shot 2014-07-04 at 23 30 27](https://cloud.githubusercontent.com/assets/319055/3485196/fbaf3a8e-03ca-11e4-8cd0-9af71619c01a.png)