Release 0.2.1 -- Hotfix release to provide better (i.e. more Unix-like)

installer options.

Release 0.2

This is the first serious (yet still early) release that can be used in
production environments.

But this is no excuse not to be careful anyway!

Release 0.1

This is a very early (even premature) release to enthuse the open source
community for gitflow.