wai-middleware-static-0.5.0.0: changelog.md

## 0.5.0.0

* Add `isNotAbsolute` policy and change `static` and `staticPolicy` to 
  use `noDots` and `isNotAbsolute` policies by default. (Thanks to Nick Hibberd!)

* Add `unsafeStaticPolicy`, which behaves as the old insecure `staticPolicy` behaved.

* Add changelog