PIM-3116: Remove attribute property "usable as grid column"
PIM-2574: No popup saying there is unsaved changes

When a product form is submited with invalid values, the page in
reloaded with theses values (even the good one) and if we clik on back
to the grid there is no warning message we are leaving a form with
unsaved values
Trigger the change event on the root form
Merge pull request #1602 from akeneo/PIM-3116

PIM-3116: Remove the property 'can be used as column'
Merge pull request #1600 from akeneo/PIM-2574

PIM-2574: No popup saying there is unsaved changes
Merge pull request #1608 from akeneo/1.2

1.2
Clean Product related interfaces
Merge pull request #1563 from akeneo/clean/catalog

Clean catalog models
Fix monolog for composer
Merge pull request #1613 from akeneo/fix/monolog-composer

Fix monolog for composer
Merge branch 'master' into refactor/product_query_builder