fix bug: add to cart and favorite fail

delete initFecShop

update fecadmin version

fecadmin controller and view , migrate to fecshop appadmin

css style

bug fix:generate order, item_count = only cart active product total c…

…ount, not all cart product

修复体积重和安装sql，以及更新readme信息

update readme

支付宝库包问题：PHP 7.2 Deprecated: The each() function is deprecated 修复

支付宝库包问题：PHP 7.2 Deprecated: The each() function is deprecated 修复