#3 os_support values in module.info are too limited

[Mario Vazquez]

The os_support values in module.info are too limited
and outdated. Specially since the module itself
depends on cistron radius, webmin, perl, and all of
them works on a vast array of systems. Right now, a
person has to modify the module.info file if plan to
install this module in a system like gentoo.

Included is a patch that change the os_support line and
add mosts linux/bsd revisions. Value was taken from
the bind8 module.info that comes with webmin 1.240.

[Mario Vazquez]

Expand os_support to cover more and newer distributions