record and replay the burma shave easter egg

src/game/boe.main.cpp

@@ -640,6 +640,8 @@ void replay_action(Element& action) {
 		return;
 	}else if(t == "cancel_item_target"){
 		cancel_item_target(did_something, need_redraw, need_reprint);
+	}else if(t == "easter_egg"){
+		easter_egg(boost::lexical_cast<int>(action.GetText()));
 	}else if(t == "advance_time"){
 		// This is bad regardless of strictness, because visual changes may have occurred which won't get redrawn/reprinted
 		throw std::string { "Replay system internal error! advance_time() was supposed to be called by the last action, but wasn't: " } + _last_action_type;