Comment 2 for bug 1555262

After some discussion, I will update the following:
1 - update mos-docs information about changing passwords and performing Fuel Master patching to include changes to /etc/fuel/astute.yaml and ~/.config/fuel/fuel_client.yaml
2 - update python-fuelclient to advise user to update fuel_client.yaml located in home dir, not in /etc
3 - Update Fuel UI feedback about updating /etc/fuel/astute.yaml and ~/.config/fuel/fuel_client.yaml
4 - Update bootstrap_admin_node.sh to fail if fuelclient credentials fail before starting puppet.

Note on #2: We will not add info about /etc/fuel/astute.yaml to fuelclient because it may be run on a separate host than Fuel Master