Change forgotten attributes for 1.9.10 stable release

Author: ywarnier

main/install/version.php

@@ -13,9 +13,9 @@
  * Variables used from the main/install/index.php
  */
 $new_version            = '1.9.10';
-$new_version_status     = 'beta';
+$new_version_status     = 'stable';
 $new_version_last_id	= 0;
-$new_version_stable 	= false;
+$new_version_stable 	= true;
 $new_version_major      = false;
 $software_name          = 'Chamilo';
 $software_url           = 'http://www.chamilo.org/';