Revert "Removed calls to matefvs + Started migration to MATE 1.5"

This reverts commit da53c42e726e3404f82f17ab79972d4ae1e44929.
Revert "Removed calls to matefvs + Started migration to MATE 1.5"

This reverts commit bedd38453387cd98827d82e38c7f159d42e05e0d.