#1970: Fix bug for new uploads
Fix display of subscriptions on profiles
fix Cache.delete
new version
Prevent forum post's topic_id from being changed

See #1289, 2013
Merge branch 'master' of https://github.com/r888888888/danbooru
Merge branch 'master' into ajido
画像ファイルの参照先をS3に変更するオプションを追加