Virt Lightning Versions Save

• Cosmetic documentation changes
• Don't try to fetch an image that already exists
• Add ability to boot old system with no virtio support
• Use Libvirt default settings when possible
• Use the VNC display by default
• Add support for OpenVSwitch (a.k.a OVS )bridge
• vl stop: avoid a Python backtrace if the VM doesn't exist

Main changes are the RHEL8 support and fetch action to retrieve images:

• enable static typing check (mypy)
• ensure get_distro_configuration() return dict
• import ubuntu-14.04 distro script
• README: document the configuration keys
• ability to manually set the IP address
• ability to set the FQDN
• metadata: pass the root_password in admin_pass
• openstack meta: preserve long file name
• memory: set the current the amount of memory
• start: add the --name argument
• centos: don't need NetworkManager anymore
• Add ssh_config CLI command
• add new images
• vcpu: correctly cap the number of CPU
• remove iconify() function
• remove the swap disk
• test: remove a dup of test_create_disk
• add ability to define several NIC
• improve the low memory warning
• use distro specific configuration
• add the fetch action
• on RHEL8, kvm is in /usr/libexec
• use openstack metadata format by default
• clean up the network
• improve distro specific config managment
• start: pass --memory and --vcpus properly
• hostname autogeneration: allow - char
• root_disk_size: default at 15G again
• add new images
• test: coverage for create_disk()
• black: refresh the indentation
• flake8: ignore T001 errors
• README.md: remove the template system