[Featureserver] D in CRUD not working

[Yves Moisan]

> 
> A while back I wrote an httplib2-based proxy script (supporting GET,
> POST, PUT and DELETE) that I'd be happy to share. See [*].
> 
> [*] <https://trac.mapfish.org/trac/mapfish/browser/sandbox/camptocamp/MapFishUnhcr/client/examples/http-proxy.py>
> 
Thanx Eric !

Yves