ambiata/mundane — pull request #22 by charleso (2014-07-02 23:34:36+00:00)
Title: Introduce Temporary.using for ensuring directory cleanup after use

Raised from Ivory [PR comment](https://github.com/ambiata/ivory/commit/79699cfcf8c80b77000865c8108036425249684c#commitcomment-6873287)