Addresses again

The "AddressDBPlaceFinder" is now improved and debugged (With new unit-tests).

It now knows about suburbs and can index as well as search them and augment the result of a SimplePlaceFinder with suburbs and city-names to
make the result more usable.

Instead of 100x"mainstreet" you now get
"mainstreet, CityA"
"mainstreet, CityB(Suburb1)"
"mainstreet, CityB(Suburb2)",...