Are you going to be using a database? If so, create the file /your/path/to/ravana/config/db.php and place these contents inside (while obviously substituting the actual value of the variables with your database configuration):
<?# Only mysql is supported at the moment. Changing this line will# result in a terminal error!$config['dbtype'] = 'mysql';# Where is the DB server? a IP, or 'locahost'$config['dbhost'] = 'localhost';# Your DB's name ( a string, obviously)$config['db'] = 'myDatabase';# User ( a string, obviously)$config['dbuser'] = 'Jon';# Password ( a string, obviously)$config['dbpass'] = 'y8ose5';?>