Download latest akanda ISO from the private bucket

Move the akanda ISO download later in the installation
sequence and get the file from the private bucket by
using a credentials file not managed in git.

Change-Id: I7f7b210a6944efaad2c5296f10c41d2d16de39f7
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge pull request #2 from dhellmann/move-iso-to-private-bucket

Download latest akanda ISO from the private bucket
Create the demo user's networks

Create a network and subnet for the demo user after
the rug is started.

Change-Id: I795e200524c7948cea41cd4f08a311dd7d8b7dc7
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge pull request #3 from dhellmann/create-demo-networks

Create the demo user's networks
Remove extra IPv6 subnet on mgt network

Akanda automatically creates an IPv6 subnet on every network,
but in this case it is using the wrong CIDR.

Change-Id: Ie13a544644a98d795e5287b7e07b2a841326f018
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge pull request #4 from dhellmann/cleanup-ipv6-subnet

Remove extra IPv6 subnet on mgt network