Log Message:
gallery-dl: Update net/gallery-dl to 1.1.1

Changes:
1.1.1
-----
 * Added support for:
    `slideshare` - <https://www.slideshare.net/> (#54)
 * Added pool- and post-extractors for `sankaku`
 * Added OAuth user authentication for `deviantart`
 * Updated `luscious` to support `members.luscious.net` URLs (#55)
 * Updated `mangahere` to use their new domain name (mangahere.cc) and mobile URLs
 * Updated `gelbooru` to not be restricted to the first 20,000 images (#56)
 * Fixed extraction issues for `nhentai` and `khinsider`