Check completion with the right validator
Fixes wrong class name
Merge branch 'master' into midway_odm

Conflicts:
	CHANGELOG.md
	src/Pim/Bundle/CatalogBundle/Doctrine/MongoDBODM/CompletenessGenerator.php
	src/Pim/Bundle/CatalogBundle/Resources/config/model/doctrine/Completeness.mongodb.yml
Fixes completeness calculation
Renames bson to mongodb_json for normalization
bson to mongodb json renaming
Merge branch 'master' into midway_odm
Renaming bson to mongodb_json
Merge pull request #869 from akeneo/mongodb/rename_bson

Mongodb/rename bson