pfSense

Applied in changeset d12003c99517c25105673c557aebec7e3fa55dcb.

I backed out the changes I made. This was already present under the voucher config, there is an interval that can be set which saves the voucher data into the config periodically. Ermal has the details.

Just test with a snapshot including all the changes.
Should be ok now.

oh, yeah it has a save interval there, guessing that wasn't working previously. Needs testing.

I committed code to prevent that foreach error.