v1.23.1

Additions

• [flickr] add support for secure.flickr.com URLs (#2910)
• [hotleak] add hotleak extractors (#2890, #2909)
• [instagram] add highlight_title and date metadata for highlight downloads (#2879)
• [paheal] add support for videos (#2892)
• [tumblr] fetch high-quality inline images (#2877)
• [tumblr] implement ratelimit option (#2919)
• [twitter] add general support for unified cards (#2875)
• [twitter] implement cards-blacklist option (#2875)
• [zerochan] add metadata option (#2861)
• [postprocessor:zip] implement files option (#2872)

Fixes

• [bunkr] fix extraction (#2903)
• [bunkr] use media-files servers for m4v and mov downloads (#2925)
• [exhentai] improve 509.gif detection (#2901)
• [exhentai] guess extension for original files (#2842)
• [poipiku] use img-org.poipiku.com as image domain (#2796)
• [reddit] prevent exception with empty submission URLs (#2913)
• [redgifs] fix download URLs (#2884)
• [smugmug] update default API credentials (#2881)
• [twitter] provide proper date for syndication results (#2920)
• [twitter] fix new-style /card_img/ URLs
• remove all whitespace before comments after input file URLs (#2808)