Support Create, Update and Delete of OData entities

[GoogleCodeExporter]

Currently such operations return "not implemented" by GeoREST.

Original issue reported on code.google.com by jumpinja...@gmail.com on 17 Jan 2012 at 10:18

[GoogleCodeExporter]

I think this is a great idea, but at a minimum would want to be able to set the 
default access level to read-only on a per-featureset basis.  

Ideally, we would also support authentication and authorization for OData, but 
that feels like a lot of work.  Not sure if authentication  could be handled at 
the HTTP level; guess it depends on order of modules in IIS, not sure for 
Apache.  There would still need to be some way of tieing in authorization.

Original comment by ja...@jasonbirch.com on 17 Jan 2012 at 8:56