*https://www2.census.gov/geo/pdfs/maps-data/data/rel/explanation_zcta_place_rel_10.pdf
*https://www2.census.gov/geo/docs/maps-data/data/rel/zcta_place_rel_10.txt
I also load up the 2010 ANSI codes for places (i.e., statefp, statecpde, placename, placefp, etc.):
* Source: https://www.census.gov/library/reference/code-lists/ansi.html
* Data: national_places.txt -> national_places_processed.txt (regexes)
* Pop the last word off the placename!
===Load the Additions===