Update author info and attempt to clarify the CRS situation.

My text promotes the practice of long, lat coords using the default
CRS (which is the same as with KML) over the practice of using
projected coordinates or, worst of all, lat/lng coordinates.
Merge branch 'master' of https://github.com/sgillies/draft-geojson
merged pull request from sgillies which promotes the practice of long, lat coords using the default CRS (which is the same as with KML) over the practice of using projected coordinates or, worst of all, lat/lng coordinates