app/views/items/show.html.erb: Fix typo.
Arrange products page.
Remove 'destroy' link from dashboard page.
Put notes on fields in new brand page.
Put notes on fields in new product page.
app/views/products/_form.htmml.erb: Update.
Add admin column to users table.
config/initializers/devise.rb: enable config.scoped_views.
Copy users views from Devise.
Display check box for admin in sign up page, only when no admin.