Replaced the dead link with a project of the same name (less#595)

Author: effectzer0

content/tools/ports.md

@@ -17,7 +17,7 @@ title: Ports
 ### PHP
 * [lessphp](http://leafo.net/lessphp/docs/)
 * [BW Less CSS](http://wordpress.org/extend/plugins/bw-less-css/) (WordPress Plugin)
-* [less.php](http://lessphp.gpeasy.com/)
+* [less.php](https://github.com/wikimedia/less.php)
 * [ILess](https://github.com/mishal/iless)
 
 ### Python