Update table name

Closes #15 and CartBundle/issues#1
Closes #12
[RFC] Added method to return the total amount of items in a Cart
[CartBundle] Fixes #19. Remove Cart::isDeleted() occurrences
Fixes #23 [UserBundle] Store new customer id in session
Fixes #25 [CartBundle] Refactor Cart::getNbItems()
Issue #26. Migrating to PSR-4
Added README.md files into all Components
Fixed typos/CS
Issue 26 Fixed PSR-4
Closes #30 Added dependencies and yml file

* Added `ircmaxwell/password-compat` dependency with stable version
* Added yml file sample for security encoding definition
* Removed old PasswordEncoder EventListener, definitions and tests
* Added Missing basic functional test for SessionEventListener
* Fixed some classes
Fixes #46 [CartBundle] let Cart::getTotalItemNumber return 0