Imports code from RippingCluster project

Imports all generic classes from the RippingCluster project, with any ripping-specific code stripped out.
Tested against a dummy project for errors.

source/lib/Sihnon/Utility/VisibleFilesIterator.class.php

@@ -0,0 +1,9 @@
+<?php
+
+class Sihnon_Utility_VisibleFilesIterator extends FilterIterator {
+    public function accept() {
+        return !(substr($this->current()->getFilename(), 0, 1) == '.');
+    }
+}
+
+?>