增加分页模块
商品列表页处理，及批量处理
Merge branch 'dev' of github.com:whitefoxx/changwei into dev

Conflicts:
	apps/manager/views/menu.py
1. 商品列表页上架、下架、删除及批量操作
2. 手机端预览页面 wappreview
1. 增加菜单点击动作设置UI
Merge branch 'dev' of github.com:whitefoxx/changwei into dev

Conflicts:
	apps/manager/urls.py