PIM-2127 : inject product storage in datagrid configuration
PIM-2127 : disable ORM selector extension for Mongo (will be re-enable
when this extension will be storage agnostic)
Prevented to break travis build when example is skipped
Merge branch 'master' into mongo/disable_selector_extension
Merge pull request #845 from akeneo/mongo/disable_selector_extension

Temporary disable selector extension for Mongo (MongoDB support)
PIM-2127 : update MongoDB hydrator (to fix the attribute property change
from attributeId to attribute)
Skipped ODM custom types spec when doctrine/mongo-odm is not installed
Merge branch 'master' into midway_odm
MongoDB mapping for completeness