First Commit
Finished A
Finished B1
Finished B2
Forgot to save product_test.rb
Finished playtime of B.  Made the minumum title length 10 and made a unique message if title isnt unique
finished c1
finished c2
finished c3
finished section C and looked back at one of the playtime questions in B
revisited playtime of B
finished D but not the playtime
completed the first playtime activity in D
finished 2nd playtime, session counter at the bottom of index page
finished 3rd playtime, moved the counter to the top.
got the counter to reset, when you hit the back button you must refrresh the page to see it take effect
finished last playtime.  i added a counter to display the visits just to prove its working.  there is another counter that will appear below it after the count > 5
created the links to cart and back to index
added the popularity increment, lines 50, 51 in line_items_controller.rb
sorted the products by popularity.  it is in product.rb in models.  changed default_scope :order from name to popularity DESC