Fixed: deletion should send a 204 HTTP status
Added: bulk actions, move and remove
Fixed: when an element was moved, the check for an existing element with the same name in the target directory was wrong.
Changed: better errors for move action
Added: when an element is selected, it doesn't show its move and remove button
Fixed: folder action buttons were not refreshed after a bulk action
Merge branch 'master' of github.com:jsilvestre/cozy-files