restructure application classes

www/analytics/core/Version.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik;
+
+/**
+ * Piwik version information.
+ *
+ *
+ * @api
+ */
+final class Version
+{
+    /**
+     * The current Piwik version.
+     * @var string
+     */
+    const VERSION = '2.2.0';
+}