Updating PHP requirements in files  5.1.6
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 74aed86..f40eac8 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -2,7 +2,7 @@
 /**
  * Code Igniter
  *
- * An open source application development framework for PHP 4.3.2 or newer
+ * An open source application development framework for PHP 5.1.6 or newer
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team