added support to MfList for ancient fixed-format list input with touching numbers - defaults to "free" but keys on bas6.ifrefm flag.  Expanded free-style float output format in MfList to '%15.7' : this preserves the input precision, regardless of the fixed/free option used.
added support to MfList for ancient fixed-format list input with touching numbers - defaults to "free" but keys on bas6.ifrefm flag.  Expanded free-style float output format in MfList to '%15.7' : this preserves the input precision, regardless of the fixed/free option used.

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