[gril]revert grilio back to original

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
[gril]send all commands before destroying watch

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
Merge pull request #125 from jpoutiai/next

remove multiple watchers