Added protection against methods that remove piston heads and utilize the glitch to break bedrock and such. Any piston who has its head removed will also have its base removed.
see this video -> (confirmed working in 1.13.2)

Also added configuration options to each of the protections so server owners can turn them on / off. (you'll need to remove your old config and restart the server to generate the new protections.) note if you do NOT regenerate your config.yml then NONE of the protections will be active!