Added another load path because SASS needs specific paths to load the fi...

...les, made server run in the root of a component and added a callback for when server fails
Can we stick to the `function(error, output)` convention? This is what the `commandLine.run` callback conforms to. Although, in my PR #51 I alter this to `child_process.spawn` and pipe the output to stdout. The callback will never be called as the user must hit `^c` to stop the process so is this necessary?