Add extra management in order flow

Add in order flow : ajax to get price, update order with total of ordr
Merge branch 'master' of https://github.com/Dorn-/accro

Conflicts:
	src/Zenweb/Aventure/ParcBundle/Controller/Admin/OrderController.php
	src/Zenweb/Aventure/ParcBundle/Resources/config/routing.yml