Changes in 2.31.3:
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* Added DocBook 5 support (Brian M. Carlson)
* Accept dragged documents on Yelp windows
* Context-sensitive right-click menus
* Store scroll positions in back/forward list
* Basic print support added
* Better handling of plain text documents
* Added emblems to drop-downs on bookmarked locations
* Updated LZMA decoder to the new API (Javier Jardón)
* Compile-time options for lzma and bz2
* Color animation on search entry when focused
* Find bar added, slides in from bottom
* Ctrl+S now starts a search
* Fixed some issues with page titles not being displayed
* Fixes for relative links in HTML documents
* Automatically update bookmarks icons and titles
* Use new common HTML output from yelp-xsl
* Fixed issue that prevented primary window from being used
* Updated translations:
  es    (Jorge González)
  gl    (Fran Diéguez)
  id    (Andika Triwidada)
  or    (Manoj Kumar Giri)
  sl    (Matej Urbančič)