[talk-ch] Updated GWR address data extracts

I've updated the GWR extracts that are available from http://qa.poole.ch/addresses/ch/ to data from the 19th of March of this year. It should now be consistent with the municipality border changes at the beginning of this year. If you notice any issues please complain.

The caveats with respect to the data quality still apply, in particular because of the rather questionable street data for some mainly mountainous municipalities some local knowledge is a good thing to have before using the data.

Simon

PS: there will likely be a PotM on the topic of improving the situation with addresses in the immediate future.