Don't make url_paths entry for county with no precinct results
Don't make url_paths entry for county with no precinct results

Addresses https://github.com/openelections/core/issues/124

datamade/openelections-core,openelections/openelections-core,cathydeng/openelections-core,cathydeng/openelections-core,datamade/openelections-core,openelections/openelections-core