lod_and_effect: add charset="utf-8" for d3.js
lod_and_effect: add charset="utf-8" for d3.js
kbroman/d3examples,wstrinz/d3sparql,kbroman/d3examples,kbroman/d3examples,kbroman/d3examples,wstrinz/d3sparql,wstrinz/d3sparql,kbroman/d3examples