refs 4472 hide library facet with only 1 real library
refs 4472 hide library facet with only 1 real library

MiraitSystems/enju_trunk,MiraitSystems/enju_trunk,MiraitSystems/enju_trunk,MiraitSystems/enju_trunk,MiraitSystems/enju_trunk,MiraitSystems/enju_trunk