Suggestion: ship production ready build to npm

Hey,

I noticed that the current version deployed on npm (i.e. https://www.npmjs.com/package/javascript-algorithms-and-data-structures) is more or less a mirror of the source code here. javascript-algorithms is really awesome and someone might want to use it as an external library on production (e.g. a web app or node app). Unfortunately, the use of ES modules, complicates things a bit.

May I suggest:

1. Transpiling code to ES2015, using CommonJS instead of ES modules;
2. Removing redundant source code (e.g. comments, README, etc) to reduce package size.

I'd be more that willing to provide a PR using rollup + babel.

No files or tests are named. Start by reviewing the current npm package and how the repository builds its ES module source; compare the proposed Rollup and Babel approach with the existing package contents. Done means a production-ready CommonJS/ES2015 package is published without redundant source or documentation files.