Fix Shipping Method Calculator form prototype handling

Currently, switching the calculator field in the ShippingMethodType embeds calculator config prototypes under __name__ key, which causes the form to not validate. This commit makes the following changes:
 * use the proper field name (configuration)
 * skip embedding forms for calculators that don't support configuration (currently results in empty text field being embedded)
Behat tests
My account / addresses :  - improving Behat tests  - delete cascade on table sylius_user_address  - listener to directly add the address to the current user (when an address is created) and to directly unset billing and shipping to the user (when an address is deleted)  - main featurees
My account / addresses :  - improving routes  - improving templates  - finishing "set as default address" features
My account / addresses :  - translations
My account / addresses :  - fixing Behat tests  - now test user is sylius@example.com (like in the fixtures) and his password is sylius
My account / addresses :  - minor fixes
My account / addresses :  - isolating routes
My account / addresses :  - Behat tests  - fixing addresses test code
My account / addresses :  - fixing translations
My account / addresses :  - extending ResourceController  - using custom action for create instead of using Listener
My account / orders :  - fixing routes after rebase
Merge pull request #347 from Richtermeister/fix-shipment-calculator-config

Fix Shipping Method Calculator form prototype handling
Merge pull request #314 from jjanvier/feature/my-addresses

[WIP] My account section : address book