Adding new modules to solve #98

* Explode - returns array of exploded strings using delimiter
* Path - takes the path of a URL (not including hostname nor fragment
* Pop - returns last value in an array

README

 lodspeakr - Linked Open Data Simple Publishing Kit
 author: Alvaro Graves (alvaro@graves.cl)
-version: 20120316 
+version: 20120318 
 
 Simplest Installation
 ---------------------

lib/Haanga/lib/Haanga/Extension/Filter/Explode.php

+<?php
+
+class Haanga_Extension_Filter_Explode
+{
+    static function generator($compiler, $args)
+    {
+        if (count($args) != 2) {
+            $compiler->Error("Explode only needs two parameter");
+        }
+
+        return hexec('explode', $args[1], $args[0]);
+    }
+}

lib/Haanga/lib/Haanga/Extension/Filter/Path.php

+<?php
+
+class Haanga_Extension_Filter_Path
+{
+    static function generator($cmp, $args)
+    {
+        return hexec('parse_url', $args[0], hconst('PHP_URL_PATH'));
+    }
+}

lib/Haanga/lib/Haanga/Extension/Filter/Pop.php

+<?php
+
+class Haanga_Extension_Filter_Pop
+{
+    static function generator($compiler, $args)
+    {
+        if (count($args) != 1) {
+            $compiler->Error("Pop only needs two parameter");
+        }
+
+        return hexec('array_pop', $args[0]);
+    }
+}