Version 3.0.0

• Setup for publishing to NPM, with common.js main and ES6 module entrypoints.
• Removing the demo as it needs to be rebuild for the latest version.
• Removed licence file, mentioning the licence in the readme is sufficient.
• Improved licence comment block.
• Setup new build and linting tools to generate the dist files.
• Source is now ES6 via Babel, although still pretty conservative.
• Better automatic API docs tooling using documentation.js.
• Added an .editorconfig file.
• Updated browser support to browserslist query > 2%.
• Git ignoring more junk files.
• Hurdler is now a peer dependency, and a Hurdler instance is now a required parameter of the Slider constructor instead of being expected in global scope.
• Optimized logo.
• Readme logo hosted by RawGit, referencing the release tag in Git.
• Lowercase readme filename.
• Misc. tweaks and fixes.