Fix bad taxation label when decimal value
display only taxes's decimals when needed
fix cart tax display behat tests
fix cart tax display behat tests
make it possible to configure the phpcr config, default to enabling caching
Add one-to-many Payment relationship to Order.
Deprecate the old getPayment and setPayment methods.
Fix comments.
Update payment listener and state resolver to loop through all payments.
Fix comments.
Change security token model to Payment.
Update last payment only.
Payment details bug fix.
Change OrderStatusAction to PaymentStatusAction.
Minor bug fix.
Update behat.yml.dist

Because if I run bin/behat, I see 
  [InvalidArgumentException]              
  Session "selenium2" is not registered.  

What do you think ?
Fix comments.
Fix incorrect use statment
Merge pull request #1445 from kayue/fix/use-statement

Fix incorrect use statment
Update migration class.