PIM-2272: Define mass action dispatcher
PIM-2272: Redefine mass action route with own controller
PIM-2266: Rename method to delete products from id
PIM-2267: Add method to check if ids are empty
PIM-2283: Prepare mass action query into ProductRepository
PIM-2271: Remove Mediator from mass action handler
PIM-2272: Define route and controller for mass actions
PIM-2271: Remove mediator for mass action handlers
PIM-2271: redefine handler in mass_action configuration
PIM-2272: Redefine mass action dispatcher to be storage agnostic
Merge branch 'master' into PIM-2272

Conflicts:
	src/Pim/Bundle/CatalogBundle/Doctrine/MongoDBODM/ProductRepository.php
PIM-2272: Clean ProductRepository method
PIM-2283: Add php doc in product repository interface
PIM-2283: Clean mass action query preparation
PIM-2272: Fix filter extension used
PIM-2272: Fix issue to set parameters
PIM-2272: Fix export handler configuration
PIM-2272: Create getRepository() to be storage agnostic
PIM-2272: Get repository from datasource
PIM-2272: Get repository from datasource