draft data format for Opentabs

The webcredits spec was meant to be expanded, and i am now at a point
where it is not expressive enough for opentabs. Also I think its
variable naming could be improved using Hungarian prefixes like the
ones I posted to the rww cg list on Saturday.

So here is a draft version of the concepts i am currently thinking of
introducing for Opentabs.

https://github.com/unhosted/website/wiki/opentabs-data-format

It's also an experiment about how Hungarian linked data could look,
and it's also still very much subject to bugs and changes. This may
change in the future, but i wanted to share it with this cg in case
anyone has comments at this point.


cheers!
Michiel