* Add animate custom emoji param to embed pages
* Rename param, use it for avatars and gifs
* Fix issues pointed by codeclimate and breaking test
* Ignore brakeman warning
- Use statuses controller for embeds instead of stream entries controller
- Prefer /@:username/:id/embed URL for embeds
- Use /@:username as author_url in OEmbed
- Add follow link to embeds which opens web intent in new window
- Use redis cache in development
- Cache entire embed
