ENH: print default values in `--help`
ENH: print default values in `--help`

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