add image uploading with carrierwave and mini-magick
update gems
delete unused css and coffee file; update deprecated disable_with
move duplication to separate template
refacor category#show moving to home#category; appying simpler route
reformat product _form
add PaidOrder model instead of status field in Order
force slim to do pretty output
user can now view only his order
refactor controller from dumb instance var
refactor controllers for using current_user for order choosing
refactor controllers
check for total_price is more then 0