add bookie url configuration option
add bookie url configuration option

wangjun/Bookie,GreenLunar/Bookie,adamlincoln/Bookie,charany1/Bookie,pombredanne/Bookie,teodesson/Bookie,wangjun/Bookie,bookieio/Bookie,wangjun/Bookie,GreenLunar/Bookie,teodesson/Bookie,skmezanul/Bookie,adamlincoln/Bookie,GreenLunar/Bookie,bookieio/Bookie,adamlincoln/Bookie,GreenLunar/Bookie,bookieio/Bookie,bookieio/Bookie,teodesson/Bookie,skmezanul/Bookie,charany1/Bookie,skmezanul/Bookie,skmezanul/Bookie,teodesson/Bookie,wangjun/Bookie,pombredanne/Bookie,adamlincoln/Bookie,pombredanne/Bookie,charany1/Bookie