Installing iperfspeed on Nightly 913 stops the internet working

[aanon4]

Upgrading to Nightly 913 and then installing the iperfspeed package stops the internet working. Originally reported by @k1ky in #223

[aanon4]

Notes:
Installing iperfspeed package causes the node-setup script to be called. This was replaced as part of the new setup page (the original is now node-setup.pl) with a lua version and, clearly, calling it here is causing issues.

[k1ky]

Note: Confirmed that there are NO issues noted with VTUN installed on N-913.

[aanon4]

For @k1ky: Incorrect handling of the dmz flag was removing the default route given out by DHCP. This didn't take effect until the node-setup script was first run after the update, which in this case happens as part of the iperfspeed package install process. So, once that install happened, the node no longer handed out a default route to your computer connecting via LAN. If you have a chance to check the next nightly build that would be much appreciated.