kriszyp/xstyle — pull request #36 by stdavis (2014-12-08 18:21:15+00:00)
Title: Don't strip out escape characters in rule values.

This fixed a problem that I had were a rule like this:
```css
.glyphicon-glass:before {
content: "\e001";
}
```
was built into this:
```css
.glyphicon-glass:before {content: "e001";}
```