…range for saturation and lightness: 0-255. Added ability to use old ranges (0-100) by allowing percentage arguments. Used hacky way to check IM version to make sure code works for IM 6.4.9-6.5.8. Uncommented from_hsla test case and added new tests for percentages.
…_dump, marshal_load tests
… so that IM has room to breathe for the remaining tests.