add default scope and validation to category model
add default scope to product model
change category form to simple_form
redesign category new, edit view
redesign category show view, add breadcrumbs
customize bootstrap breadcrumbs, panel, add buttons class
change product form to simple form
add product panel form partial
restyle categories pages, hide buttons for not authenticated users/guests
fix blank space in category show view
hide buttons for not authenticated users/guests
restyle products index page
fix user assignment to product on create
fix authenticate product owner method
format product owner and price
decorate all exposed variables
add js button to show new product form
restyle new, edit views for product, fix routing error
restyle show product view
add js button to show new review form