Kickstart cleanups.
Kickstart cleanups.

- Add a little more guidance for users.
- Use variables to define user/pass for admin user.
- Remove extraneous semanage commands that were just re-doing things
  already done by the default CLIP policy.

quark-pat/CLIP,tomhurd/clip,quark-pat/CLIP,tomhurd/clip,ykhodorkovskiy/clip,ykhodorkovskiy/clip,rprevette/clip,tomhurd/clip,tomhurd/clip,tomhurd/clip,ykhodorkovskiy/clip,quark-pat/CLIP,tomhurd/clip,quark-pat/CLIP,rprevette/clip,ykhodorkovskiy/clip,quark-pat/CLIP,quark-pat/CLIP,rprevette/clip,rprevette/clip,quark-pat/CLIP