fix zap command to require both hostname and disk, erroring properly

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
do not complain when IP is matched with a host

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
update tests to reflect new validator behavior

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #52 from alfredodeza/6124

don't prevent HOST:IP from being used as it is valid
Merge pull request #51 from alfredodeza/4642

fix zap command to require both hostname and disk, erroring properly
remove --force in favor of --replacepkgs

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #50 from alfredodeza/6102

use replacepkgs flag to quiet down installtion of epel
test ipv6 addresses as well as ipv4:

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>