two changes to revgeo/polys

1) put polys into their own file, only look in there when needed
2) store clipped geometry in s2 cell map
do skip-level indexing
oh god, not down to 15
horrifically bad multi-threading for s2 covering generation
finish/fix multithreaded s2 index generation
continued s2 index fixes
optimization for "full" cells, I hope
pay attention to levelmod
downgrade hbase version

Conflicts:
	core/src/main/scala/GeocodeStorage.scala
rewrite the index to latest when needed
make executable
downgrade hbase version and make it work
output s2 index to correct path
resort imports!!!!!!
suck in some scoring features from natural earth
fix diff conflict
fix some init scripts
pay attention to revgeo flag
fix loading natural earth city data
further natural earth indexing fixes