Official repo: https://github.com/mrdoob/three.js#threejs Official repo is too large on Bower, so I picked files out from that repo.
Current version: r73.
In this repo the version in converted to 0.73.0 in semantic version for Bower to recognize.
bower install --save three.jshttps://github.com/mrdoob/three.js/blob/master/LICENSE