numeral.js
Cleanup shown data

Don't show fields we don't care about
Format fields we do
Sort the geoid on top and then everything else in alphebetical order
No need for CORS anymore

We're serving from the same host/port now, so there is no need for CORS
to allow us to query the server
rm useless line
Check if Feature is under click point and unique

features_at_point seems to use the bounding box and/or a buffer for each
feature. As a result the numbr of features returned is much smaller than
the whole set but not exactly what I want.  As such, lets loop through
the filtered features and check if the click point is really inside it

Also, my block-group shp file seems to have duplicate shapes in it.  I
need to clean that up; for now, the same layer shouldn't so we can just
filter.