Add show_name and untargetable to npc_types fixes #637

Note the bodytype hack is still there since I was having issues with
some npcs still showing names

utils/sql/git/required/2017_07_19_show_name.sql

@@ -0,0 +1,3 @@
+ALTER TABLE `npc_types` ADD COLUMN `show_name` TINYINT(2) NOT NULL DEFAULT 1;
+ALTER TABLE `npc_types` ADD COLUMN `untargetable` TINYINT(2) NOT NULL DEFAULT 0;
+UPDATE `npc_types` SET `show_name` = 0, `untargetable` = 1 WHERE `bodytype` >= 66;