Vaidation Product
add validate min-max length of title
Merge branch 'taskb/validation'
generate store & modify basic design
Merge branch 'taskc/cataloglisting'
add application layout
Merge branch 'taskc/applayout'
using number_to_currency to format price
add test for store controller
Merge branch 'taskc/test'
add caching to store
generate cart scaffod and current cart module(concern)
Merge branch 'taskd1/addcart'
generate line items and validate before destroy product
Merge branch 'taskd/lineitems'