ENT-13007: Fixed admin demo user for cf-remote install --demo

[victormlg]

Depends on:
#151
#152

[cf-bottom]

Thank you for submitting a pull request! Maybe @larsewi can review this?

[larsewi]

Maybe you can skip printing the setup code with demo option, given that the demo option completes the setup.

$ cf-remote --version master install --demo --bootstrap hub --hub hub
 ---snip---
##########################################################################
CFEngine Mission Portal first time setup:

Navigate to Mission Portal in your browser (using the hub's IP / hostname)
and enter the setup code below when prompted for it:

Setup code: 930816

Note: This code will expire in one hour or after 5 unsuccessful attempts,
if needed, run 'cf-hub --new-setup-code' again on the hub for a new code.
##########################################################################
 ---snip---

What happens if you install an older version of CFEngine that does not have a first time setup?

[victormlg]

Maybe you can skip printing the setup code with demo option, given that the demo option completes the setup.

$ cf-remote --version master install --demo --bootstrap hub --hub hub
 ---snip---
##########################################################################
CFEngine Mission Portal first time setup:

Navigate to Mission Portal in your browser (using the hub's IP / hostname)
and enter the setup code below when prompted for it:

Setup code: 930816

Note: This code will expire in one hour or after 5 unsuccessful attempts,
if needed, run 'cf-hub --new-setup-code' again on the hub for a new code.
##########################################################################
 ---snip---

What happens if you install an older version of CFEngine that does not have a first time setup?

It looks like it works fine for order version of cfengine