Compass Sass extension doesn't read properties, loses units.

Hi,

something is broken. SCSS compass extension works fine.

Example output:

```
// Base style 
color:
```

should be

```
// Base style
color: #3D3D3F
font-family: "MuseoSans"
font-size: 20px
```

and also:

```
// Style for image
width: 285
height: 191
```
