Reorganize project part 1

services/ApplicationService.php

@@ -0,0 +1,26 @@
+<?php
+
+class ApplicationService
+{
+	/**
+	 * @return boolean
+	 */
+	public static function IsDemoInstallation()
+	{
+		return file_exists(__DIR__ . '/../data/demo.txt');
+	}
+
+	private static $InstalledVersion;
+	/**
+	 * @return string
+	 */
+	public static function GetInstalledVersion()
+	{
+		if (self::$InstalledVersion == null)
+		{
+			self::$InstalledVersion = preg_replace("/\r|\n/", '', file_get_contents(__DIR__ . '/../version.txt'));
+		}
+
+		return self::$InstalledVersion;
+	}
+}