Fix typo in "string.join" causing undefined variable error. Fixes #11.
Fixes #11 We aren't sure we have a city name, give up rather than possible mangle bot the address and the city.
Merge pull request #13 from markstos/dont-rob-the-address-when-you-cant-find-a-city

This is the fix I prefer for dealing with both the undefined string error and ambiguity about parsing city names.