Jordan Cole

- `favorites.getPublicList` [(docs)](http://www.flickr.com/services/api/flickr.favorites.getPublicList.html): User’s publicly-accessible favorites. - `favorites.getList` [(docs)](http://www.flickr.com/services/api/flickr.favorites.getList.html): Full list of a user’s favorites, including non-public ones. `r` - `favorites.add` [(docs)](http://www.flickr.com/services/api/flickr.favorites.add.html): Add a photo to user’s favorites. `w+` -...

Would you mind adding a license to this project?

Convert to ES module

1

This PR converts the code to use ES6+ features: * `import` dependencies * convert plugin from `extend`ing `L.Control` to a native ES `class` * `export` plugin (though it's also still...