[carbon] geonames: don't use "A" feature class
According to http://www.geonames.org/export/codes.html A isn't very informative for our use case.
This patch restricts the feature classes to geoencode travels to P and S.
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According to http://www.geonames.org/export/codes.html A isn't very informative for our use case.
This patch restricts the feature classes to geoencode travels to P and S.