Minor cleanup
Changelog fixup
Fix, the dict built-in may not raise an exception unless its arguments do.

* This is a fix for Issue#158 or a very similar issue to it.
New hotfix release.
Merge branch 'hotfix/0.5.6.1'
Merge tag '0.5.6.1' into develop
OpenBSD: Added "eg++" as a candidate, search "/usr/bin/local" path too.

* This makes OpenBSD work out of the box, provided clang or eg++ are
  installed.

* The platform is not yet really support due to fiber issues.
OpenBSD: Added dedicated fiber implementation for OpenBSD

* This is in fact a generic library that could be used on other
  platforms as well.

* Need to make performance comparisons with our existing ones
  eventually.

* Licensed under MIT, so we can freely include it.
New pre-release.