anchor.diff:  * Keep text cursor in correct column on manual location sync.
   * Manage dependencies to Asciidoctor with npm, bower, and grunt
   
  -=== Version 1.0.8
  +== Version 1.0.8
   
   * Position of the rendered HTML can be synchronized with the editor's text cursor position.
   * Busy indicator is displayed for lengthy conversions.
   
  -=== Version 1.0.7
  +== Version 1.0.7
   
   * Update to Asciidoctor.js 1.5.0
   * Support for MathJax added (thanks to https://github.com/mogztter[@Mogztter])
  
positive.code: attributes currently not supported.
  * Set +env=browser+ and +env-browser+ attributes internally by default
  
  === Version 1.0.2
  
  * Asciidoctor v1.5.0 preview 5
  * Opal 0.6.2
  
negative.code: * Preferences for 'base_dir', 'safe mode', and 'doctype' added.
  * Fix relative paths in '\include::' directive
  
  == Version 1.0.1
  
  * Preferences: 'showtitle' added, 'doctype' removed
  * width of settings panel decreased
  * misc cleanup
  
  == Version 1.0.0
  
  Initial version
  
  