Log Message:
gallery-dl: Update to 1.13.4

Changes:
1.13.4
------
### Additions
 - [aryion] add `gallery` and `post` extractors (#390, #673)
 - [deviantart] detect and handle folders in sta.sh listings (#659)
 - [hentainexus] add `circle`, `event`, and `title_conventional` metadata
   fields (#661)
 - [hiperdex] add `artist` extractor (#606)
 - [mastodon] add access tokens for `mastodon.social` and `baraag.net` (#665)

### Changes
 - [deviantart] retrieve *all* download URLs through the OAuth API
 - automatically read config files in PyInstaller executable
   directories (#682)

### Fixes
 - [deviantart] handle "Request blocked" errors (#655)
 - [deviantart] improve JPEG quality replacement pattern
 - [hiperdex] fix extraction
 - [mastodon] handle API rate limits (#665)
 - [mastodon] update OAuth credentials for pawoo.net (#665)
 - [myportfolio] fix extraction of galleries without title
 - [piczel] fix extraction of single images
 - [vsco] fix collection extraction
 - [weibo] accept status URLs with non-numeric IDs (#664)