Operation.php for 1.5
Paren.php for 1.5
Quoted.php for 1.5
Rule.php for 1.5
Ruleset.php for 1.5
Selector.php for 1.5
Url.php for 1.5
Value.php for 1.5
Colors.php for 1.5
change toCSS_Add() to OutputAdd() to reflect less.js
Environment.php for 1.5
Extend visitor for 1.5
functions.js (Environment.php) for 1.5
join-selector-visitor for 1.5
fix error
to-css-visitor for 1.5
visitor.php for 1.5
Parser.php for 1.5
make sure $options is array
$node instead of $nodes in visitor.php