Revision history for CSS-LESS-Filter

0.04 2012/12/10
  - filter usage didn't work correctly

0.03 2012/12/10
  - let it warn if there're unmatched filters (or append the result
    of unmatched filters)

0.02 2012/12/10
  - make it easier to tweak at rules

0.01 2012/12/09
  - initial release
