v1.0.1 App Cred Update

This release includes updates to the CentOS 7 VC which allow the use of
Application Credentials instead of the standard openrc with password
Non-Default subnets (any subnet you want as long as it's 10.x.x.x/24! - but be careful to edit the definition in ALL locations)
A single command to generate a new cluster - cluster_create.sh now also runs install.sh on the new instance.