[Geojson] Editing the 1.0 text

[Sean Gillies]

I've taken it upon myself to edit the official 1.0 text. No changes are
being made to the spec, I'm only editing for clarity and consistency.
Please reply with feedback ASAP, because the overwhelming consensus is
that it's time to wrap this up.

You can always see the latest at

http://zcologia.com/sgillies/hg/geojson-draft/file/tip/geojson-draft-6.txt

with HTML version at

http://zcologia.com/sgillies/hg/geojson-draft/raw-file/tip/geojson-draft-6.html

and all changes logged at

http://zcologia.com/sgillies/hg/geojson-draft/shortlog

Sean