correct spelling

Lib/Auth.php

@@ -9,7 +9,7 @@ if (!defined('USER_RIGHT_KEY')) {
 App::uses('CakeSession', 'Model/Datasource');
 
 /**
- * Convinience wrapper to access Auth data and check on rights/roles.
+ * Convenience wrapper to access Auth data and check on rights/roles.
  * Expects the Role session infos to be either
  * 	`Auth.User.role_id` (single) or
  * 	`Auth.User.Role` (multi)

Lib/Utility/Utility.php

@@ -250,7 +250,7 @@ class Utility {
 	}
 
 	/**
-	 * convinience function for automatic casting in form methods etc
+	 * Convenience function for automatic casting in form methods etc
 	 *
 	 * @param mixed $value
 	 * @param string $type