Import paths and other options?

So far writing tests for mixins with the help of SassUnit.

I wonder whether I could pass options to sass, especially I would find import paths very useful not to write something like this in my tests:

``` sass
@import src/utilities/subfolder
```

I noticed you already include the base path of test folder which is nice.

Or even better not to import anything in each and every file... When I am testing a large framework and have 20 functions to test... I would have to include my functions sass file every time.

Or maybe even a configuration file for sassunit could be created? There could be a base folder for tests, framework, style, etc..
Thanks for great job!