3.1.1 release.

- Various code golfing measures to further reduce size (thank you, @leeoniya!)
- Updates to data-attributes are now handled by `requestAnimationFrame`.
- Merged asfaloth (version 3) to master!
- Updated README.
- Updated packages.

Added events system.

Updated readme to show npm install using next tag.

Barring bugs, this is the final commit for version 2 (shadowfax).

- Went code-golfing to the extreme!
- Fixed a bug with feature detection in Edge 15's IntersectionObserver implementation.
- Updated packages.

2.3.1 release

- Fixed regressions for numerical options where passing values of `0` would be overridden by defaults.
- Added a line where the intersection observer is disconnected when there are no more elements to lazy load (only when `observeChanges` is `false`).
- Updated packages.

2.3.0 release.

- Reduced output size by nearly 30%.
- Resolved #33.
- Removed `idlyLoad` option. Setting `idleLoadTimeout` to `0` now disables calls to `requestIdleCallback`.
- Updated packages.
- Fixed display issue in test HTML.
- Amended contribution guidelines.

2.2.2 release.

Updated packages, resolved #37.

2.2.0 release

- Added linting via eslint.
- Updated Babel to version 7.
- Added @babel/preset-env. May add a separate leaner build for mjs in the future.
- Resolved bugs #24 and #28 by removing async decoding via `Image.decode()`.
- Added features requested in #19 and #32.
- Updated documentation.

Bug fixes galore:

- Fixed #23, which encapsulates all of yall's dependent functions in the main `yall` function. (Thanks, @michielkouwenhoven!)
- Fixed #21, which improves development experience on Windows machines. (Thanks, @kalled!)
- Fixed #18, which prevents yall.js from overwriting all `data-` attributes on elements by using an attribute whitelist.
- Fixed an issue which broke yall.js on Samsung Internet.