Lessons learned
scaleOrdinal vs scaleLinear (only 2 colors!) vs interpolateCool vs d3.schemeColor20c
ribbon source vs index (change fill them differently)
https://github.com/d3/d3-scale-chromatic
https://bost.ocks.org/mike/uberdata/
http://bl.ocks.org/mbostock/1046712
https://bl.ocks.org/mbostock/4062006
http://projects.delimited.io/experiments/chord-transitions/demos/trade.html
https://github.com/jokecamp/sportdb-build-scripts
https://groups.google.com/forum/#!topic/opensport/593H1O7yIdE
https://github.com/openfootball/datafile/blob/master/worldcup.rb
https://openfootball.github.io/questions.html
TODO
1974 two germanies?
update ribbon hover
// STRANGE EXTENDED TIME CHILE-BRAZIL (when? not 1930) - FIX BY HAND? IS BECAUE se1 IS SCORE __GOING INTO__ EXTENDED TIME
color scheme pane
toggle sort icon
toggle round icon
image edit posters
fix SVG icons to be smaller and inline
better colors
remove dependencies from Diagram
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