Rewrite tests with PHPUnit
Install PHPUnit
Add product reviews classes
Add product reviews filtering by product
Allow to iterate collections with foreach
Add sorting to collections
Add some todo items
Implement MVC and render product pages
Router refactoring
Introduce DB resources
Update todo list
Add filter and average function to DB collection
Update todo list
Add little bit design
Add little bit design
Fix 0.00 special price
Fix sql injection issue on product page
Use autoloader
Incapsulate table name and primary key
Update todo