added a script for automating opsi

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>
BAT gives cryptic error message

BAT gives cryptic error message, if director network address is
configured wrong.

Fixes #21: bat gives cryptic error message, if director network address is configured wrong

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>