Disable consistent network device naming in RHEL7

In RHEL6, I simply had to kickstart with 'biosdevname=0' to disable this and fall back to ethX interface naming. In RHEL7, I understand that I need to use net.ifnames=0 in order to do this, but it doesn't retain after installation. I'm looking for the best way to automate disabling consistent network device naming during installation (Kickstart). Any thoughts?

Also, Page 117 in the RHEL7 Networking Guide incorrectly tells me I need to modify /etc/grub.conf.