Add method to the internal library to retrieve all the versions stored
Add method to the internal library to retrieve all the versions stored

Signed-off-by: Pierre-Yves Chibon <0e23e1aa25183634677db757f9f5e912e5bb8b8c@pingoured.fr>

Devyani-Divs/mirrormanager2,Devyani-Divs/mirrormanager2,pombredanne/mirrormanager2,Devyani-Divs/mirrormanager2,pombredanne/mirrormanager2,pombredanne/mirrormanager2,pombredanne/mirrormanager2,Devyani-Divs/mirrormanager2