bugfix on appdesk: the columns key of i18n was processed
Ajout de l'extension du fichier à uploader
Merge pull request #54 from romunovius/patch-2

Attachment : set() without the filename parameter, use the basename (filename + extension) of the file
Merge branch 'master/chiba' of git://github.com/novius-os/core into master/chiba
Merge master/chiba