Description of problem:

Firstboot currently uses "useradd" (from shadow-utils) to create the "initial"
user.  This results in a home directory with 755 permissions -- this is a
security problem.

The system-config-users gui interface for creating users uses the luseradd
program from the libuser package.  This results in a home directory with 700
permissions -- much better from a security perspective.

Using luseradd would also fix the selinux attributes to be consistent.