Handle invalid postcodes. Fixes openaustralia/publicwhip#134.
Merge branch 'test' into issue134
Get php code to work around the postcode lookup server bug
Get rails output to match php output when searching for a bad postcode
Re-enable bad postcode rpsec test
Merge pull request #184 from DanielKinsman/issue134

Handle invalid postcodes. Fixes openaustralia/publicwhip#134.