Fix: Detection of skipped imported files works on Windows now.

<a href="https://github.com/MartinStepar"><img src="https://avatars.githubusercontent.com/u/794505?v=2" align="left" width="96" height="96" hspace="10"></img></a> **Issue by [MartinStepar](https://github.com/MartinStepar)**
_Friday Aug 22, 2014 at 08:04 GMT_
_Originally opened as https://github.com/oyejorge/less.php/pull/163_

----



----

_**[MartinStepar](https://github.com/MartinStepar)** included the following code: https://github.com/oyejorge/less.php/pull/163/commits_