[CentOS] again, nic driver order

The formula that ended up working for me:

undo modifications to udev rules
comment out the alias ethX lines that anaconda had placed in my modprobe.conf
use HWADDR= in the ifcfg-ethX config files.
slave interfaces have onboot=yes in them, despite no IP address information

The nics are correctly initialized every boot now, and everything
works as expected with the bonding driver.  I even have vlans created
on the bonded interface.

Gordon