geojson crs is staying after all

[sheppard]

I propose removing the caveat about GeoJSON CRS, as it looks like the GeoJSON WG has determined that removing the CRS definition from the standard entirely would cause more problems than it would solve. So, L.Proj.GeoJSON will continue be an implementation of a standard (though not recommended) GeoJSON feature - the ability to use coordinate systems other than CRS84.

See geojson/draft-geojson#14 and https://gist.github.com/sgillies/8304592.

cc @mourner

[sheppard]

Hmm, perhaps we should still have an explicit reminder to users that CRS84 should still be used in most cases (to better reflect the spirit of the standard).

[perliedman]

Thanks!

Although I really prefer WGS84, I think they made a good choice here.