* Fixed issue [#396](https://github.com/jakubpawlowicz/clean-css/issues/396) - better input source maps tracking.
* Fixed issue [#480](https://github.com/jakubpawlowicz/clean-css/issues/480) - extracting upcase property names.
-[3.1.5 / 2015-xx-xx](https://github.com/jakubpawlowicz/clean-css/compare/v3.1.4...3.1)
+[3.1.5 / 2015-03-06](https://github.com/jakubpawlowicz/clean-css/compare/v3.1.4...v3.1.5)
==================
* Fixes issue [#483](https://github.com/jakubpawlowicz/clean-css/issues/483) - property order in restructuring.