anchor.diff:  * Upgrade thread_safe gem
   * Prevent crash if doc has no sections (@abatalev)
   
  -{uri-repo}/issues?q=milestone%3Av1.5.0.alpha.9[issues resolved] |
  -{uri-repo}/releases/tag/v1.5.0.alpha.9[git tag]
  +{url-repo}/issues?q=milestone%3Av1.5.0.alpha.9[issues resolved] |
  +{url-repo}/releases/tag/v1.5.0.alpha.9[git tag]
   
   == 1.5.0.alpha.8 (2015-06-23) - @mojavelinux
   
  
positive.code: * Add example for specifying theme file (Leif Gruenwoldt) (#61)
  * Add thread_safe gem to remove warning when registering converter
  
  {uri-repo}/issues?q=milestone%3Av1.5.0.alpha.6[issues resolved] |
  {uri-repo}/releases/tag/v1.5.0.alpha.6[git tag]
  
  == 1.5.0.alpha.5 (2014-09-15) - @mojavelinux
  
  
negative.code: * document that background images are scaled to fit bounds of page
  * add note in theming guide about using double quoted strings
  
  {url-repo}/issues?q=milestone%3Av1.5.0.alpha.15[issues resolved] |
  {url-repo}/releases/tag/v1.5.0.alpha.15[git tag]
  
  == 1.5.0.alpha.14 (2017-02-05) - @mojavelinux
  
  