Change the SMF to Elk importer so that avatars in the gallery are copied as well (it just copies everything, no need to be picky)

Signed-off-by: emanuele <emanuele45@gmail.com>
A less picky import of attachments and avatar from SMF 2.0 to Elk 1.0

Signed-off-by: emanuele <emanuele45@gmail.com>