Merge branch 'feature/language_zh-cn' of https://github.com/leopku/mastodon into leopku-feature/language_zh-cn

Thanks garg

Privacy descriptions were very difficult to reason. This is the minimal level of color contrast to be WCAG AA compliant.

Descriptions of differences between scope are more clear

 S3 protocol  from ENV

add support for reading S3 protocol from ENV
also add S3_HOSTNAME in .env.production.sample

add ability to open status by URL from search (fix #53)

this merge is necessary,

Returns accounts, statuses, hashtags arrays