Questions about the network implementation

I'm creating a pull request, which has a slew of changes... Mostly fixes to the esp8266 socket stuff but also adds errors to the standard socketserver, i.e. socket and http classes. When in doubt I looked at node.js, so a socket error event handler receives one parameter, which is an object with a code and a message. I'm pretty happy with the client socket test coverage, but the server test coverage is very thin. So I expect there will be some bugs to sort out. The server side has almost no changes at the socketserver level, so I'm hoping I didn't break anything for non-esp8266 versions.

The open issues I have with all this:

• can anyone run some sanity tests on other platforms?
  
• the http request object error handler is not invoked on HTTP errors (such as a 404), but according to the node.js docs it should be and I think it would be really helpful. Thoughts? I suppose I would set code to an error code for "http error" and then add a status field with the http statusCode? (I have never used node.js and the docs are not explicit about this.)
  
• I have not dealt with printing errors if there is no error handler.
  
• I can not load the MQTT library on the esp8266, it runs out of memory, (I'm not at all suprised), so I'm still expecting to write a C library...
  
  

Phew, it feels like I can see the light at the end of the tunnel...