Windows packaging cleanup- get rid of "Monty Program AB" in installation registry keys.
Windows packaging cleanup- get rid of "Monty Program AB" in installation
registry keys.

This is safe to do before first prerelease of new version is available,
otherwise it would break upgrades

natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2