added localstrorage into index_shopping_cart.html.erb

在商品显示页面中加入了localstrorage，点击加入购物车，添加localstrorage，在购物车页面中取出localstrorage显示商品信息，并修复了购物车页面的价格显示，保留小数点两位。
added animate to input-shoppingcart botton from show_product.html.erb

 给加入购物车按钮加入了购物车动画
added localstrorage and animate to show_product.html.erb
fixed show_product.html.erb img bug

把网页顶部的空行去除。
added <hr> to index_shopping_cart.html.erb and change index_cat_products.html.erb

购物车添加了hr标签和修改了商品分类显示页面的商品margin-bottom
add tab nav to the usercenter
fix the route of the usercenter icon in the index.html
add locate function to the sign_up page
add locate function to the new.html.erb page and add tab nav to the usercenter pages
Fix site user_center link and _bottombar link.
change index_html.erb style

修改了主页的产品图片高度和对齐方式
Add create_order to site_controller.
Merge branch 'yang' into dev
Merge branch 'dev' of github.com:onecampus/wine into dev
Add invoice order product_order model.
Fix invoice order and product_order.
Add order.js to customer.js in lib/.
Add create_order params to order.js.
Fix create_order via ajax.
Merge branch 'yang' into dev