Update file Phpcr model + add unit tests for file and image
add cmf:media + cmf:file + cmf:image mixin
elfinder adapter - fix adding files in subfolder
Update file + directory phpcr model: extend phpcr-odm documents
phpcr model: use new HierarchyInterface of phpcr-odm Folder
phpcr model: update node type mapping and remove mix:created if inherited