Changes in 2.91.10:
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* Fixed some issues with previous/next links
* Better indents and margin in man pages (Rupert Swarbrick)
* Handle links in man pages (Rupert Swarbrick)
* Improvements in how error pages are handled
* Auto-install packages for missing documents
* Set busy cursor when page is loading
* Updated translations:
  ar    (Khaled Hosny)
  es    (Jorge González)
  et    (Ivar Smolin)
  gl    (Fran Diéguez)
  he    (Yaron Shahrabani)
  id    (Andika Triwidada)
  sl    (Matej Urbančič)
  sv    (Daniel Nylander)