Extended by: Features, Version Defined in: lib/sass.rb, lib/sass/css.rb, lib/sass/exec.rb, lib/sass/repl.rb, lib/sass/root.rb, lib/sass/scss.rb, lib/sass/util.rb, lib/sass/error.rb, lib/sass/stack.rb, lib/sass/engine.rb, lib/sass/logger.rb, lib/sass/plugin.rb, lib/sass/script.rb, lib/sass/shared.rb, lib/sass/scss/rx.rb, lib/sass/version.rb, lib/sass/features.rb, lib/sass/selector.rb, lib/sass/call