Fix plot sizes.
Re-create many of the original epxloratory images. Fix links from the HTML.
Top users; Maps!

Add back the top user calculations and basic plots of top users.
Introduce OpenStreetMap maps, which is based on gdal. Add base map plotting functionality.
Replace old point-map with a minimal map showing all instagram posts in NYC with TOD.
Add a hint to click on the map.
Remove the hint. I forgot about the responsive styles, which make this irrelevant.
First run at multiple voices. For some reason they won't stop playing at the end.
Rename source file to match the convention.
Adds top users time-of-day polar plots.

Abstracts scale_x_tod for reuse in various plot explorations.
Remove old top_user_tod png.
Fix never-ending tone problem
Map style; R package build and manual; Minor sound changes.

The mapbox map is now using my ver basically styles white map. We're
displaying neighborhoods by colors, according to the number if posts
in each. Neighborhoods for which we don't have any data are being
displayed in white, as are areas outside of NYC.

I reverted the sound, re-introducing the infinite play bug. I'll
work on fixing that next.

The R package had some build issues, which should be resolved. I've
also introduced additional neighborhood stats JSON dumps.
Fix opacity on the map.
Fixed audio once and for all! Now the two voices are in sync.

Thanks to @colinbdclark. See https://github.com/colinbdclark/Flocking/pull/61#issuecomment-32116601
Audio synthesis uses scales.

Move all audio synthesis out of the main app.js and into a separate file:

    audio-synthesis.js

Introduce `music.js` to help with basic note and scale matching.