[PATCH - 497334] change the basic assumption about kickstart network

[Chris Lumens <clumens redhat com>]

These two patches change one of the basic operating assumptions about the
network command in kickstart.

Before:  No "network" command implies dhcp
Now:  No "network" command implies stop and ask in stage1

This brings the network command in line with how everything else in kickstart,
and also gets rid of the obnoxious and short lived --bootproto=query, though it
will still have to be recognized for compatibility reasons.

- Chris