spelling error

Hi,

There is a spelling error on line 996 of conditional_fields.module which causes the script to fail.

PHP Fatal error:  Call to undefined function druapal_strtolower() in /opt/bitnami/apps/drupal/htdocs/sites/all/modules/condition
al_fields/conditional_fields.module on line 996

You need to change:
'!state' => druapl_strtolower($states[$options['state']]),
to
'!state' => drupal_strtolower($states[$options['state']]),

I don't have permissions (or the experience) to upload a patch, so I hope that someone can fix this for everyone.