Create Links in Model when using Add or Set directly and allow manipulation of the Model.Links, e.g. in the Resolve() function
Bugfix for setting Vclock
Set content_type on Save

Always set content type when Saving Models, it may otherwise get lost. E.g. when siblings are resolved.
fix
Tag model struct fields properly to play nice with others
Remove a bunch of debug prints in tests
Move protobuf code into a separate package
Unexport ModelName
Move customized json into it's own package
Fix model documentation