Pre-parsing of location name string to get better match

[davidzbiral]

Now there is no preparsing probably. But already white spaces and especially punctuation suggest some structure. E.g. in "Milano, corso Vittorio Emmanuele II", the comma means that it is two levels, and there, the app should guess the best match, i.e. e more smart than to stubbornly pass the whole string to gazetteers - which yields few results, thus reducing the usefulness of the application.