Moved writing of inversion residuals to seismic folder.
Only write top/bot surfaces to seismic folder if residual keyword is used.
Fixed several bugs related to 'bug141015' for reading multicolumn ascii surfaces.
Updated usage of residual keyword, and added a fourier-residual keyword.
Moved writing of inversion residuals to seismic folder. Only write top/bot surfaces to seismic folder if residual keyword is used.
Fixed several bugs related to 'bug141015' for reading multicolumn ascii surfaces. Updated usage of residual keyword, and added a fourier-residual keyword.