1) 101 will be maintained to minimize overlap with vanilla JS.
101 utils are made to work well with vanilla JS methods.
101 will only duplicate vanilla JS to provide functional programming paradigms or
if the method is not available in a widely supported JS version (currently ES5).
Underscore/lodash - duplicates a lot of ES5: forEach, map, reduce, filter, sort, and more.
2) No need for custom builds.
With 101, import naturally, and what you use will be bundled.
Each util method is a module that can be required require('101/<util>').
Currently node/browserify is supported, I will add other module system support on request.
Underscore/lodash is large, and you have to manually create custom builds when if you're
trying to optimize for size.
