Send job execution notif to the current logged in user
Throw the invalid item exception inside readers

Improve the UI to display the invalid item
Display job and steps error in the report
Initial product association grid implementation
Merge branch 'master' into PIM-1265
Described the export media with products feature
Directly inject the Filesystem into the Media manager
Fix phpcs
Trully ignore the media in the product normalizer
Create the export directory if necessary
Merge branch 'master' into PIM-1265

Conflicts:
	src/Pim/Bundle/CatalogBundle/Entity/Product.php
Merge branch 'master' into PIM-1265
PIM-1008 Created a product csv serializer processor

Allows to serialize product and store media to export
PIM-1008 Normalize product media in the flat product normalizer
PIM-1008 Added a copy method to the media manager
PIM-1008 Created a product file writer

It writes products file and copy their media
PIM-1008 Created a product method to get its media
PIM-1008 Configure the product export job with the new processor/writer
Fix product association datagrid to display proper association state
Merge branch 'master' into PIM-1265