increase memory limit (related to http://www.chamilo.org/phpBB3/viewtopic.php?f=14&t=5199)

Author: emarguin

main/inc/lib/main_api.lib.php

@@ -15,7 +15,7 @@
 // PHP version requirement.
 define('REQUIRED_PHP_VERSION', '5.3');
 
-define('REQUIRED_MIN_MEMORY_LIMIT',         '32');
+define('REQUIRED_MIN_MEMORY_LIMIT',         '128');
 define('REQUIRED_MIN_UPLOAD_MAX_FILESIZE',  '10');
 define('REQUIRED_MIN_POST_MAX_SIZE',        '10');