* update eslint's `comma-dangle` rule to `always-multiline`
* add check and fix scripts to package.json
* Invoke `yarn fix` to adopt the updated eslint rules. No other changes are included.
* Add async handling of custom emoji to posts and channel info
* Add server request to emoji autocomplete
* Add custom emoji paging and server search to emoji picker
* Fix android
* Update mattermost-redux and revert temp change
* Backwards compatibility fixes
* Updates per feedback
* Set server version when user is not logged in
* Reset section index when search is cleared or cancelled
* Some small fixes and upgrade mattermost-redux
* Minor sorting changes
