1.0.4 (August 28, 2012)
  -----------------------
  
   * Fixed the Twig tag to avoid a fatal error when left unclosed
   * Added the HashableInterface for non-serialiable filters
   * Fixed a bug for compass on windows
  
  1.0.3 (March 2, 2012)
  ---------------------
  
   * Added "boring" option to Compass filter
   * Fixed accumulation of load paths in Compass filter
   * Fixed issues in CssImport and CssRewrite filters
  
  1.0.2 (August 26, 2011)
  -----------------------
  
   * Twig 1.2 compatibility
   * Fixed filtering of large LessCSS assets
   * Fixed escaping of commands on Windows
   * Misc fixes to Compass filter
   * Removed default CssEmbed charset
  
  1.0.1 (July 15, 2011)
  ---------------------
  
   * Fixed Twig error handling
   * Removed use of STDIN
   * Added inheritance of environment variables
   * Fixed Compass on Windows
   * Improved escaping of commands
  
  1.0.0 (July 10, 2011)
  ---------------------
  
   * Initial release