suisho/cssjoin — pull request #13 by jokesterfr (2014-11-19 14:19:51+00:00)
Title: Fix infinite loop due to double quotes uris

I had issues with double quotes uris, this example will be likely to produce an infinite loop in the parser :
```css
body {
background-image: uri("./img/background.png");
}
```

The fix is very simple, please tell me if it's convenient