Switch to looking up the version from a file with a fall back to get
it directly from git tags if the file isn't available.
The version file is automatically generated by a task of building of the
gem and included in the package release to prevent reading from git.
Should allow the release process to be automated from pushing of a git
tag.
/var/lib/libvirt/dnsmasq/*.leases files.
- IP address is saved in $data_dir/ip file for future.
This IP is then checked if it match with VMs MAC address.
- Added ssh, provision and resume subcommand
