ENH: change efficiency prior to log scale
ENH: change efficiency prior to log scale

villrv/MOSFiT,mnicholl/MOSFiT,mnicholl/MOSFiT,guillochon/MOSFiT,bmockler/MOSFiT,villrv/MOSFiT,bmockler/MOSFiT,mnicholl/MOSFiT,guillochon/MOSFiT,guillochon/MOSFiT,guillochon/FriendlyFit