Merge branch 'feature/yohoCoin' into release/5.2

@@ -154,7 +154,7 @@ function render(data) {
     if (data.cartInfo.promotionId) {
         $('.btn-minus,.btn-plus').find('span').addClass('disabled');
     }
-    $('#limitNum').val(data.cartInfo.limit || 0);
+    $('#limitNum').val(data.cartInfo.limit);
     $('#promotionId').val(data.cartInfo.promotionId);
     $('#single').val(data.single);
     $('#chose-btn-sure').text(data.tickets ? '立即购买' : '加入购物车');