RESTlets fail to work with POST requests when the SavedRequestRestorer filter is enabled

Some part of the RESTlet or JAX-RS frameworks make use of request.getInputStream, instead of request.getParameter*, and in some containers (for example Jetty) using both getParameter and getInputStream is not possible, since getParameter consumes the input stream.

A workaround is to manually extract the srid parameter from the query string, but this means that:

• the srid cannot be used in POST requests, but in all current use cases GET is used anyway;
• the regular expression used for this is pretty basic, so there might be some complex URLs that fail to be recognized.