Updated read_from_cnf to make compatible with util_2d and util_3d
Updated read_from_cnf to make compatible with util_2d and util_3d

aleaf/flopy,brclark-usgs/flopy,aleaf/flopy,bdestombe/flopy-1,jentjr/flopy,brclark-usgs/flopy,jentjr/flopy,mrustl/flopy