[Geojson] GeometryCollection not treated as a Geometry type

[Martin Daly]

> You guys are spending way too much time being different for no
apparent
> reason. It is a waste of your time, and will be a waste of the time of
the
> reader who will have to realize the differences in rules in each
> specification instead of following a consistent approach for all OGC
> specification of geometry representations. Occam and Einstein both saw
that
> simple things should be done simply.

In which case, could you do the wiki thing and create a draft version 7
with improved wording, so that everyone can understand the implications.

M