Release 0.6.0

[benmccann]

It's been almost a year since the release of 0.5.0. There are some commits I would really like to see be made available in a released version.

[krystiannowak]

For me especially the upgrade to Jackson 2.0.x - which also contains some really nice fixes.

[imikushin]

Yeah, I'd cut the new release if given committer access ;)