ADD drop table at start

afu/.sql_init

@@ -1,5 +1,8 @@
 -- Initialize the tables for the callbook program
 
+DROP TABLE IF EXISTS `callbook_user`;
+DROP TABLE IF EXISTS `callbook_address`;
+
 CREATE TABLE IF NOT EXISTS `callbook_user`(
 	`id`		SERIAL,
 	`user_id`	INT(10) UNSIGNED NOT NULL DEFAULT 0,