SONATA-287 - Fix newsletter block to be handled in ajax

Fix controller
Merge pull request #110 from eko/2.3-develop

SONATA-287 - Fix newsletter block to be handled in ajax
Implementation of ecommerce autoPriceUpdate
Merge branch '2.3-develop' into autoPriceUpdate

Conflicts:
	src/Application/Sonata/PageBundle/Resources/views/layout.html.twig