Fix case when rule field is not specified
Fix default rendering of the media picker field
Refactoring
Update queries to be compatible with mongoDB
more defensive access to group workspaces
Merge branch 'localization' into develop

Conflicts:
	Core/Rubedo/Collection/Dam.php
	Core/Rubedo/Collection/Queries.php
	Core/Rubedo/Templates/FrontOfficeTemplates.php
	application/modules/blocks/controllers/ContentSingleController.php
	public/templates/root/blocks/fields/imageField.html.twig