Update Model/Cart.php

Add an automatic update if items added, removed or set. So if someone uses Cart Model, he dont have to care about it
Add shortcut method for easier event dispatching
Merge pull request #28 from stloyd/master

Add shortcut method for easier event dispatching
Removed cart prefix
Merge pull request #29 from mykehsd/hotfix/CartEventFlashMessages

The flash messages for clearing & saving cart are switched around
Merge pull request #26 from umpirsky/fix/remove-cart-prefix

Removed cart prefix
Fix parameter name in services.xml
Move to Min validator to Range on CartItem Entity
Merge pull request #30 from Amenophis/master

Move to Min validator to Range on CartItem Entity
Update Model/Cart.php
Merge pull request #27 from Gladhon/master

CartModel auto-calculation
Fix the templating engine parameter issue
Add the missing driver parameter
add check if a cart exists without creating a new one
tweak hasCart
Merge pull request #32 from rubas/master

add check if cart exists without creating a new one
Tweak specs, accept only integers for money values
Merge branch 'master' of git://github.com/Sylius/SyliusCartBundle

Conflicts:
	spec/Sylius/Bundle/CartBundle/Model/Cart.php