Replacing the SCSS->CSS conversion library by a newer one made by Leaf Corcoran: http://leafo.github.io/scssphp, tweaked to work on PHP 5.3

SVN:trunk[4203]

lib/scssphp/src/Compiler/Environment.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * SCSSPHP
+ *
+ * @copyright 2012-2015 Leaf Corcoran
+ *
+ * @license http://opensource.org/licenses/MIT MIT
+ *
+ * @link http://leafo.github.io/scssphp
+ */
+namespace Leafo\ScssPhp\Compiler;
+
+/**
+ * Compiler environment
+ *
+ * @author Anthon Pang <anthon.pang@gmail.com>
+ */
+class Environment
+{
+    /**
+     * @var \Leafo\ScssPhp\Block
+     */
+    public $block;
+    /**
+     * @var \Leafo\ScssPhp\Compiler\Environment
+     */
+    public $parent;
+    /**
+     * @var array
+     */
+    public $store;
+    /**
+     * @var integer
+     */
+    public $depth;
+}