[Geocoding] New geocoder test system

[Brian Quinion]

> A case I found, where your tool has problems: "Hagenberg im Mühlkreis" in
> Austria (Upper Austria, http://osm.org/go/0JhySf9s--) is not found, if you
> just enter "Hagenberg" (Even though for "Hagenberg" there are less than 10
> other matches).

As soon as the code finds an exact match it stops (even if it hasn't
hit 10 matches yet).  The problem here is that there is an exact match
even though it isn't what you are after.  For comparison the following
would find it even though it isn't an exact match because the extra
4323 would be enough to stop the exact match.

http://katie.openstreetmap.org/~twain/?q=Hagenberg%2C+4232

I'm not quite sure what to do with this, since continuing the search
would be quite expensive but it is clearly a problem.

--
 Brian