* Add emojis:generate_borders Rake task
* Address review
* Border all dark emoji
* Combine stroke with filter to reduce artifacting
* Cleanup Camera with Flash
* Add stroke-linejoin="round"
The previous filter and tweaks were effectively a poor imitation of it.
There are no artifacts for any dark emoji now!
* Set stroke-width using property
This fixes old versions of Firefox.
* Store emoji in string instead of array
* Use separate arguments for each path segment
* Remove "background: black;"
A new rake task emojis:generate downloads a full list of valid
unicode sequences from unicode.org and checks it against existing
Twemoji files, finally generating a map from each sequence to the
existing file (e.g. when there's multiple ways an emoji can be
expressed). The map is dumped into app/javascript/mastodon/emoji_map.json
That file is loaded by emojione_light.js (now a misnomer) which
decorates it further with shortcodes taken from emoji-mart's index.
