small changes to better handle missing parts of data from json file.. still not perfect and awaiting definitive data format.
small changes to better handle missing parts of data from json file.. still not perfect and awaiting definitive data format.

USGS-R/repgen,jread-usgs/repgen,jread-usgs/repgen,mhines-usgs/repgen,USGS-R/repgen,dpattermann-usgs/repgen,USGS-R/repgen,mhines-usgs/repgen,thongsav-usgs/repgen,lindsaycarr/repgen,dpattermann-usgs/repgen,zmoore-usgs/repgen,mhines-usgs/repgen,thongsav-usgs/repgen,lindsaycarr/repgen,zmoore-usgs/repgen,dpattermann-usgs/repgen,zmoore-usgs/repgen,thongsav-usgs/repgen,lindsaycarr/repgen