Return success message for authorization
Store the order information on Redis

This will make possible to reuse this data to generate dynamic values
for the capture method
Use order information to fill the capture response
Normalize the amount before storing it
Use the order object not the parameters
Mask the card number
Cleanup the tests
Remove forgotten gsub
Use rack-test idiom to check the response status
Flush the database after each test
Add test to order creation
Return false if the order with the same id is authorized
Check if the parameters are returned when the order is created
Check the amount normalization
Add test to the card number mask
Upgrade redis gem
Add captured? method to order instance
Move attribute normalization to instance and always return instances of
order on class methods
Create a Order#save to persist the object
Reuse Order#save on create