Version 2.21.0

• Sources:
  • [novelsrock] Re-enable it and fix some issues
  • [boxnovel] Fix for novels without images #401
  • [wuxiasite] Fix image src #397
  • [wordexceprt] Fix chapter parsing #397
  • [anythingnovel] Disable it. Reason: Site broken #397
  • [rebirthonline] disabled. site moved
  • [wuxiaco] fix crawler
  • [novelfull.com] Add https base url
  • [wuxiacom] Fix searching
  • [fu_kemao] fix
  • [lnmtl] Fix volume list parsing
  • [novelraw] Fix title parsing
  • [novelfull.com] Add https base url
  • [mtled-novels] removed
• bots:
  • [discord] Remove async from cleanup_handlers
  • [discord] Update messages
  • [discord] Fix random.choice call
  • [discord] Use file logger
  • [discord] handle and report error more
  • [discord] fix linting issue on python 3.5
  • [discord] Reenable search on discord
  • [discord] Discover signal char more simply
  • [discord] save logs with shard id
  • [discord] Improve distributed processing
  • [test] Catch cloudscraper exceptions
  • [test] Add more test input