WebSearch: get_fieldvalues() supports recID list
- get_fieldvalues() can now take list of recIDs as argument.
- Plugged this new faster way of calling get_fieldvalues() into get_most_popular_field_values().
- Removed unneeded functions get_values_for_code_dict() and get_most_popular_values_for_code().
- Minor improvements to the author page. Added timing into output when verbose is set to 9.