Merge remote-tracking branch 'origin/Marek'
almost done with Bonus II
Merge remote-tracking branch 'origin/Smaranda'
Merge remote-tracking branch 'origin/Marek'
finished Bonus II
Merge remote-tracking branch 'origin/Smaranda'
added a scroll to top widget in layout.jade, so it is available for all pages
in orderdetails.jade:
    - fixed a bug when the client for that order was deleted from the database
   - made each product name point to its correspondent orders/product page
   - added the total price calculation
made the Tests with Mocha ....EZ