Improve error handling for WMS GetMap requests so only a well known set of rendering exceptions are ignored

See discussion here http://www.nabble.com/WMS-rendering-eats-all-exceptions-td24543043.html

Basically, StreamingRenderer defers all the exception handling to it's RenderListener}}s. It does even for {{Throwable.

GeoServer's WMS GetMap request means to ignore some kind of rendering errors in order to make a best effort at rendering the most possible out of a dataset. So it means to ignore reprojection exceptions, for example.

But the side effect is that all and every exceptions are being ignored, producing "false positive" getmap responses where some exception that shouldn't be ignored is thrown.

We can add with no performance penalty a listener that checks if the exception is one of a well known set of exceptions that we're interested in ignoring, and if not fail and hence throw a ServiceException instead of returning a false positive success response.