Adds PHPTAL as templating library.

The [TAL language is described on wikipedia](http://en.wikipedia.org/wiki/Template_Attribute_Language).

I think TAL is a widely enough accepted standard to warrant the addition of a PHP implementation to the list of awesomeness.

Usage of TAL in Twig is also available through a plugin called [Twital](https://github.com/goetas/twital), although I am unsure if I should also suggest this for inclusion on the list.