Import of custom field option values...

When importing a checkbox type custom field - e.g. GOTV Experience in
our sample - the code expects the import cell to have the 'labels':
"Phone Banking,Speakers Bureau"

BUT, when importing a select type field - e.g. Marital Status - the
code expects the 'option value': "S" rather than "Single". It shold take labels rather than values for custom field type Radio and Select.

we were validating against multiple choice options -
and throwing an error is in import row contains a bad option 'label'.
However, the behavior currently is just to ignore the unexpected
value. ??