array-bounds should be in dependencies instead of devDependencies

[wolfd]

The array-bounds package is currently in devDependencies:

regl-scatter2d/package.json

Line 49 in 477bf6e

"array-bounds": "^1.0.1",

But it is used in bundle.js:

regl-scatter2d/bundle.js

Line 63 in 477bf6e

var getBounds = require('array-bounds');

This breaks the install when NODE_ENV=production

[dy]

Thanks