Introducing compatibility layers

 - Limited support for mbstring (mb_strlen(), mb_strpos(), mb_substr() only) via iconv.
   Falls back to regular strlen(), strpos(), substr() if iconv is not available.
 - Password hashing, dependant on CRYPT_BLOWFISH (2y version, available since PHP 5.3.7) availability.
diff --git a/tests/Bootstrap.php b/tests/Bootstrap.php
index 7f10ea1..439c7fd 100644
--- a/tests/Bootstrap.php
+++ b/tests/Bootstrap.php
@@ -63,6 +63,9 @@
 	defined('ICONV_ENABLED') OR define('ICONV_ENABLED', FALSE);
 }
 
+include_once SYSTEM_PATH.'core/compat/mbstring.php';
+include_once SYSTEM_PATH.'core/compat/password.php';
+
 include_once $dir.'/mocks/autoloader.php';
 spl_autoload_register('autoload');