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.
Removing crs

This makes all GeoJSON objects Geographic/WGS84 in sensible longitude, latitude order.
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
added T. Schaub to the list of authors as requested per the mailing list
added T. Schaub to the list of authors as requested per the mailing list and handled middle.mkd merge conflict from attempted 2nd pull merge by cowardly ignoring changes for now. Please request pull again based on new revision. Thanks
Fixed typos and some language

Interior rings must fall within the geometry of the exterior ring, not just the convex hull of the exterior ring.
Interior rings must fall within the geometry of the exterior ring, not just the convex hull of the exterior ring. (merged pull request by mpdaly