MySQL udah gak disupport sama PHP

Saya ganti pake MySQLi karena mysql udah gak disupport sama PHP,
ref: http://id1.php.net/manual/en/intro.mysql.php

Thank you
Base URL autodetect

$config['base_url']	= '';

Biar auto detect aja, lebih enak
Merge pull request #2 from tirta-keniten/master

tolong direview ya gans