Add unsaved changes message to the attribute edit form
Add a customized form_end block to render the form token and closing tag
fixed CS
fixed CS
Use form_end block to close forms
Simplify some behat scenarios
Fix behat scenario
Merge branch 'master' into PIM-1437

Conflicts:
	src/Pim/Bundle/CatalogBundle/Resources/views/Group/create.html.twig
	src/Pim/Bundle/CatalogBundle/Resources/views/Group/edit.html.twig