add whois to plugin

Superb plugin, many thanks, my little contribution for .si domains :

elif [ ${DLTYPE} == ‘si’ ];
then
TYPE=si
WHOIS_SERVER=”whois.arnes.si”

elif [ $TYPE == ‘si’ ];
then
expiration=`cat ${FILE} | awk ‘/expire:/’ | cut -d ‘:’ -f2 | cut -d ‘ ‘ -f1`