All paths now call done with either success or with an error if one was generated

[imbcmdth]

Right now there are two conditions that result in no error getting returned to sass:

• If the to-be-included file was never found in the search paths
• If the file-read failed for some reason such as permissions

As a result, sass must assume that there is an asynchronous process running and waits forever without ever providing feedback as to what when wrong.

[koenpunt]

Thanks!