can see all requests
change pip requirements. reinstalled Pillow
update .config file
change libjpeg_devel version
change as turbo
change as turbo
change as turbo
change as turbo
remove some YAML strings(commands, packages)
update host url at the model of images app
change image url delivery format
create PurchaseHelper class
move PurchaseHelper class to domain.py
user can get purchase history
Merge branch 'f_user_can_see_purchase_history' into develop