Adds PHPTAL as templating library.

README.md

 * [Mustache](https://github.com/bobthecow/mustache.php) - A PHP implementation of the Mustache template language.
 * [Phly Mustache](https://github.com/weierophinney/phly_mustache) - Another PHP implementation of the Mustache template language.
 * [MtHaml](https://github.com/arnaud-lb/MtHaml) - A PHP implementation of the HAML template language.
+* [PHPTAL](http://phptal.org/) - A PHP implementation of the TAL templating language, orignating from the Python Zope library.
 * [Plates](http://platesphp.com/) - A native PHP templating library.
 * [Lex](https://github.com/pyrocms/lex) - A lightweight template parser.